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Very Hot Topic (More than 100 Replies) What 6x45 loads are you guys using? (Read 14480 times)
takbok
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What 6x45 loads are you guys using?
Feb 7th, 2017 at 2:32am
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I'm about to send my Sako 75 A1 in .222 away to get rebarreled to 6x45. I've got a sporter profile Pac-Nor 8 twist cro moly barrel for it. The barrel should end up at about 20.5" long.

I've got some of the following bullets to try:
105gr A-max
75gr V-Max
70gr Blitzking
62gr GS Custom
58gr V-Max

I can seat the bullets to 2.36" (60mm) OAL. I'll be starting with Ramshot XTerminator powder.

I'll post a few pics of the rifle when it's finished, Cerakoted and sitting in my homemade fibreglass stock (Thanks to Stug for the ideas!)

I'm just interested in what loads you guys are using and velocities achieved if you're able to measure them. I've seen one or two posts on here about the 6x45 but there isn't too much info.
  
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Mathias
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Re: What 6x45 loads are you guys using?
Reply #1 - Feb 7th, 2017 at 8:29pm
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Hi takbok, I'm running an L461 Sako with 23"Trueflite barrel 1:10
I'm mostly using 75gr Sierra HP bullets behind Hodgson H335. After reading a lot of info from US forums, this was a popular loading with good speed & knockdown on deer & goats, 3130fps. I have also tried 69gr GS Custom with good results on paper but not tried on animals, 3120fps. I can only load to 58.5mm OAL so have stuck with under 85gr bullets.
Keen to see your results with the 8 twist barrel.
  
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Re: What 6x45 loads are you guys using?
Reply #2 - Feb 7th, 2017 at 9:16pm
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Cheers for that, Mathias. I really like the GS Custom's - use them in my .270 and are very effective. I chose the 62gr as I thought the 69gr would be too long and I hope to get them up to around 3400fps.

The 8 twist barrel was one that was sitting on a gunsmiths shelf for a long time so got it cheap. I'm not likely to go over 85gr for hunting I don't think - will use the 62gr GS for Roe deer and jacketed bullets if I shoot any vermin. It will be interesting to see how it shoots the long 105gr bullets. The 95gr Sierra TMK might be an interesting one to try.

The US forums rate H335 quite highly. I will give that a try if Ramshot doesn't work.

The 6x45 seems like a fun round that I can shoot lots fairly cheaply, with a decent barrel life. Looking forward to it!
  
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Re: What 6x45 loads are you guys using?
Reply #3 - Feb 8th, 2017 at 1:05pm
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Yep cheap brass is a bonus for the 6x45. Generally you can have an increase of about 100- 150 fps over the same bullet weight in .224 (out of a 223), so you might struggle to get 3400fps with the 62gr and a 20.5" barrel. I went with the 6x45 to up the bullet weight without a longer OAL required with the .224 bullets, esp in a Sako Vixen action.
The 75gr Sierra is amazingly accurate through my set up and was the first load I tried.
  
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takbok
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Re: What 6x45 loads are you guys using?
Reply #4 - Feb 9th, 2017 at 4:46am
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Yes, maybe being a bit optimistic. I'm getting fantastic velocity with 110gr GSC's in my 270 so am keen to see how much I can push them in the 6x45.

Just trying to be patient while a guy cerakotes my new stock before I send rifle to smith for rebarrel etc.
  
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Re: What 6x45 loads are you guys using?
Reply #5 - Feb 9th, 2017 at 10:51am
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Here's a thread I started a while back on the 6x45 with opinions and ideas.

it's got me seriously looking at the 25-45 sharps as an alternative.

Food for thought

http://www.fishnhunt.co.nz/forum/YaBB.cgi?num=1472040323
  

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Re: What 6x45 loads are you guys using?
Reply #6 - Feb 10th, 2017 at 8:19am
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Thanks, Seventenths. That was a good thread to read. I did think about the 25-45 but preferred the wider choice of 6mm bullets. I thought that the .277 Wolverine looked good but it requires extra steps to make brass and doesn't offer anything over the 6x45 unless you're shooting heavy bullets IMO.
  
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Re: What 6x45 loads are you guys using?
Reply #7 - Feb 28th, 2017 at 1:02am
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Here's the finished stock with 15" LOP. Just received it back from being cerakoted OD green. Weighs 1077g and is nice and stiff.

Hopefully get the rifle back from the smith in about 2 weeks.

https://www.thestalkingdirectory.co.uk/showthread.php/132104-Homemade-fibreglass...
  
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Re: What 6x45 loads are you guys using?
Reply #8 - Mar 3rd, 2017 at 4:20pm
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I have a cooper, M51 stainless excalibur 20" in  6x45, 1-10 twist, on order, hopefully be ready, soon, will bring to Nz to replace my  .222, Looking at 60gr for small game, and 70-80gr for smaller deer, goats etc.
Was hoping it would show up, for me to bring to NZ, but I fly in 20 days, six weeks off, am looking forward to sum, hunting and fishing.

Bought a cooper single shot, this winter, (smoking deal)  Coolin 6x47 Remington, was at the range last weekend and got it Dailed in with 60g Sierra hp, for varmints, and 75g Hp for bigger game, very accurate, I am impressed, Smiley 1/2" easy with 60hp, and 30g BLC-2. Going to try for a couple coyotes, this weekend. will take the 6x47 rem.

  
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Re: What 6x45 loads are you guys using?
Reply #9 - Apr 21st, 2017 at 11:47pm
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I've just got the rifle back.

I'll try some supersonic loads in a couple of weeks.

In the meantime I've sorted out a subsonic load with 3.8gr Vihtavuori N310 pistol powder under a 120gr powder coated cast bullet - great fun for shooting in the garden.
  
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Re: What 6x45 loads are you guys using?
Reply #10 - May 9th, 2017 at 5:36am
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Shot my first groups at 100m on Saturday. 105gr A-max seated to 2.36" OAL with 23.5gr Ramshot Xterminator and CCI450 primer. Getting around 2550 fps.

Grouped around 0.75". Will maybe try one or two tweaks to see if accuracy can be improved. Bullet is around 0.11" from the rifling.

I managed to get a roe buck soon afterwards so am pretty chuffed!
  
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Re: What 6x45 loads are you guys using?
Reply #11 - May 9th, 2017 at 7:59am
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takbok wrote on May 9th, 2017 at 5:36am:
Shot my first groups at 100m on Saturday. 105gr A-max seated to 2.36" OAL with 23.5gr Ramshot Xterminator and CCI450 primer. Getting around 2550 fps.

Grouped around 0.75". Will maybe try one or two tweaks to see if accuracy can be improved. Bullet is around 0.11" from the rifling.

I managed to get a roe buck soon afterwards so am pretty chuffed!


Good stuff  Cool Looking forward to more on this.
  
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Re: What 6x45 loads are you guys using?
Reply #12 - May 21st, 2017 at 11:07pm
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I tried shooting some 62gr GS Custom bullets (243062HV08) over the chronograph this week.

COAL 2.34", CCI450 primer, Norma brass.

Ramshot Xterminator powder:

28gr -    3120fps
28.5 - 3180
29-     error reading
29.5-  3244
30.0 - 3223
30.5 - 3271

Very compressed loads (case overflowing with last one) and I wasn't too impressed with the velocities.

The GS Custom website doesn't have load data for 6x45 so went on their 6mm TCU recommendations and bought some Reloder 7 (AR2207 was another recommended powder). Much faster powders than usual for the 6x45 but these bullets are not normal!

Reloder 7 powder results from yesterday morning:

23gr - 2987fps
23.5 - 3051
24 -    3145
24.5 - 3226
25 -    3250
25.5 - 3356
26 -    3431

I'm pretty happy now. Will try a couple of higher charges to confirm max load then shoot some groups.
  
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Re: What 6x45 loads are you guys using?
Reply #13 - May 24th, 2017 at 7:42am
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Reached the limit with the GS Customs tonight.

26.4gr - 3476fps
26.7gr - 3522fps (blown primer).
  
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Re: What 6x45 loads are you guys using?
Reply #14 - May 24th, 2017 at 7:51am
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takbok wrote on May 24th, 2017 at 7:42am:
Reached the limit with the GS Customs tonight.

26.4gr - 3476fps
26.7gr - 3522fps (blown primer).


They are healthy velocities. You would be had pushed to get a 223 to equal that in a 60gr round. Shows how going up in bore size can produce the speed.
Be interested how RL7 goes with 75-80gr.
  
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Re: What 6x45 loads are you guys using?
Reply #15 - May 24th, 2017 at 7:19pm
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Mathias wrote on May 24th, 2017 at 7:51am:
takbok wrote on May 24th, 2017 at 7:42am:
Reached the limit with the GS Customs tonight.

26.4gr - 3476fps
26.7gr - 3522fps (blown primer).


They are healthy velocities. You would be had pushed to get a 223 to equal that in a 60gr round. Shows how going up in bore size can produce the speed.
Be interested how RL7 goes with 75-80gr.


I'm not sure if RL7 will work with the jacketed bullets. Maybe a bit fast. I specially chose it for use with the GSC bullets which sometimes need a faster burning powder.

I'll try a few 70gr blitzkings with it though to compare with Xterminator.
  
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Re: What 6x45 loads are you guys using?
Reply #16 - May 25th, 2017 at 7:55am
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takbok wrote on May 24th, 2017 at 7:19pm:
Mathias wrote on May 24th, 2017 at 7:51am:
takbok wrote on May 24th, 2017 at 7:42am:
Reached the limit with the GS Customs tonight.

26.4gr - 3476fps
26.7gr - 3522fps (blown primer).


They are healthy velocities. You would be had pushed to get a 223 to equal that in a 60gr round. Shows how going up in bore size can produce the speed.
Be interested how RL7 goes with 75-80gr.


I'm not sure if RL7 will work with the jacketed bullets. Maybe a bit fast. I specially chose it for use with the GSC bullets which sometimes need a faster burning powder.

I'll try a few 70gr blitzkings with it though to compare with Xterminator.


Yes the banded bullets do slip down that tube easy. The 69gr I tried didn't reach max load using H335 on the limited testing I did.
  
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Re: What 6x45 loads are you guys using?
Reply #17 - Jun 10th, 2017 at 9:50am
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Hows the grouping going with that rifle Rory?  Got some good results Smiley
  
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Re: What 6x45 loads are you guys using?
Reply #18 - Jun 14th, 2017 at 7:00am
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Not too bad now that you ask. Shot at 200m on Saturday in the pouring rain.

62gr GSC - 3 shots 1.7". Zeroed at 200 they're shooting about 1" high at 100m.

105gr Amax - 4 shots into 1.3". 4" low at 200 with roughly 100m zero.

I'm just not getting time to fiddle with loads so that will have to do for the moment. The GS loads were really hot - I think because the cartridges were soaked or the chamber had got resizing lube in it from shooting subsonic rounds that I hadn't cleaned lube off.

Wandered around the little 100 acre forest where I hunt last night but I was dead quiet and only saw a young roe doe (not in season). I think my culling during the winter has been too effective!

You getting your next 6x45 built yet? Be nice to hear how that goes.
  
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Re: What 6x45 loads are you guys using?
Reply #19 - Jun 14th, 2017 at 8:05am
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takbok wrote on Jun 14th, 2017 at 7:00am:
Not too bad now that you ask. Shot at 200m on Saturday in the pouring rain.

62gr GSC - 3 shots 1.7". Zeroed at 200 they're shooting about 1" high at 100m.

105gr Amax - 4 shots into 1.3". 4" low at 200 with roughly 100m zero.

I'm just not getting time to fiddle with loads so that will have to do for the moment. The GS loads were really hot - I think because the cartridges were soaked or the chamber had got resizing lube in it from shooting subsonic rounds that I hadn't cleaned lube off.

Wandered around the little 100 acre forest where I hunt last night but I was dead quiet and only saw a young roe doe (not in season). I think my culling during the winter has been too effective!

You getting your next 6x45 built yet? Be nice to hear how that goes.


Thats good grouping for confident hunting.
Opted to go for 6.5 Grendel on the next Sako build instead. Got most of the bits at hand, just getting the action mag well machined to accept the S491 PPC mag box I acquired and then it will be off to the gunsmith for the rest. 6x45 is still my go to gun at the moment and I've got a few different bullets to try soon, 85gr Sierra HPBT being one.
  
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Re: What 6x45 loads are you guys using?
Reply #20 - Jun 30th, 2017 at 5:22am
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6.5 Grendel will be a step up from the 6x45. Will your boltface need enlarging? Look forward to hearing how it goes.

Got another young Roe buck last week with the 6x45. At 25m the 62gr GSC broke the neck and exited the haunch - its a heavy hitter for such a little cartridge.
  
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Re: What 6x45 loads are you guys using?
Reply #21 - Jun 30th, 2017 at 8:01am
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takbok wrote on Jun 30th, 2017 at 5:22am:
6.5 Grendel will be a step up from the 6x45. Will your boltface need enlarging? Look forward to hearing how it goes.

Got another young Roe buck last week with the 6x45. At 25m the 62gr GSC broke the neck and exited the haunch - its a heavy hitter for such a little cartridge.


Yes it will need to be opened up, just as Sako did for their factory PPC.

Good result on the Roe. The 6x45 really packs a noticeable punch compared to the 223. I've used both side by side culling goats and it really shows.
  
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Re: What 6x45 loads are you guys using?
Reply #22 - Jun 30th, 2017 at 2:43pm
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Just got a call today, my cooper 6x45, is on the way form the dealer, should see it in a few days.
  
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Re: What 6x45 loads are you guys using?
Reply #23 - Jun 30th, 2017 at 3:47pm
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canadakiwi wrote on Jun 30th, 2017 at 2:43pm:
Just got a call today, my cooper 6x45, is on the way form the dealer, should see it in a few days.


Definitely need some pictures of that  Cool The ultimate factory rifle in a sweet caliber.
  
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Re: What 6x45 loads are you guys using?
Reply #24 - Jul 21st, 2017 at 4:08pm
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Finaly got my new cooper M51, 20" tube, 1-10 twist,  Z5 3x18x44 swarvoski scope, with Balistic turrent.
Put the first few loads threw today, very impressed, 75gr Serria HP, doing 2950fps with 28g CFE.223 in lapua brass, Have three sub 1/2" four shot groups, and 65gr v-max almost as good, with H335 and 3050 fps and 1/2 lower impact point.
Hopefully back yo the range tommorow, and get scope tuned to were I want it, and try get a bit more speed out of the V-max.


  
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Re: What 6x45 loads are you guys using?
Reply #25 - Jul 24th, 2017 at 7:16pm
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That cooper looks like a lovely rifle, canadakiwi!
  
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Re: What 6x45 loads are you guys using?
Reply #26 - Jul 28th, 2017 at 10:43am
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canadakiwi wrote on Jul 21st, 2017 at 4:08pm:
Finaly got my new cooper M51, 20" tube, 1-10 twist,  Z5 3x18x44 swarvoski scope, with Balistic turrent.
Put the first few loads threw today, very impressed, 75gr Serria HP, doing 2950fps with 28g CFE.223 in lapua brass, Have three sub 1/2" four shot groups, and 65gr v-max almost as good, with H335 and 3050 fps and 1/2 lower impact point.
Hopefully back yo the range tommorow, and get scope tuned to were I want it, and try get a bit more speed out of the V-max.


How did you get on with further load development? Did you try a bit more CFE223 or were you happy with that load. I'm soon to do some load work with it and 85gr Sierra HPBT.
  
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Re: What 6x45 loads are you guys using?
Reply #27 - Jul 28th, 2017 at 12:17pm
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Mathias wrote on Jul 28th, 2017 at 10:43am:
canadakiwi wrote on Jul 21st, 2017 at 4:08pm:
Finaly got my new cooper M51, 20" tube, 1-10 twist,  Z5 3x18x44 swarvoski scope, with Balistic turrent.
Put the first few loads threw today, very impressed, 75gr Serria HP, doing 2950fps with 28g CFE.223 in lapua brass, Have three sub 1/2" four shot groups, and 65gr v-max almost as good, with H335 and 3050 fps and 1/2 lower impact point.
Hopefully back yo the range tommorow, and get scope tuned to were I want it, and try get a bit more speed out of the V-max.


How did you get on with further load development? Did you try a bit more CFE223 or were you happy with that load. I'm soon to do some load work with it and 85gr Sierra HPBT.


waiting to see how that goes(85 gr sierras)
  

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Re: What 6x45 loads are you guys using?
Reply #28 - Aug 1st, 2017 at 2:46am
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Mathias wrote on Jul 28th, 2017 at 10:43am:
canadakiwi wrote on Jul 21st, 2017 at 4:08pm:
Finaly got my new cooper M51, 20" tube, 1-10 twist,  Z5 3x18x44 swarvoski scope, with Balistic turrent.
Put the first few loads threw today, very impressed, 75gr Serria HP, doing 2950fps with 28g CFE.223 in lapua brass, Have three sub 1/2" four shot groups, and 65gr v-max almost as good, with H335 and 3050 fps and 1/2 lower impact point.
Hopefully back yo the range tommorow, and get scope tuned to were I want it, and try get a bit more speed out of the V-max.


How did you get on with further load development? Did you try a bit more CFE223 or were you happy with that load. I'm soon to do some load work with it and 85gr Sierra HPBT.


Have taken the 75 g HP up to 29 gr, 28.5 is at 3000 fps, but any faster and accuracy dropped off. 
I have good loads worked with cfe223 and the 75 gr, and benchmark or H335 are both giving 3150 with the 65 v-max.
Have 20 rounds loaded up with VV 133, see if I can pick up a bit more speed, if not I get a few 58 gr v-max, the 55 noslers arnt shooting, as well as I had hoped.
Busy with house repaires and work, next days off I will have to go to the city, and pick up brass and 80-85 gr soft point to try,
Have to rework sum brass, as I bumped the shoulder back a bit far,  on the Winchester brass, and started to get light strikes on the primers and the odd dud.
Only have 40 Lapua brass, and they all good,
Love the rifle, it's not fussy, and I am getting consistent 1/2" 4-5 shot groups, with anything in the 65-75 gr weight range I have tried,65 v-max, 65  berger, Seirra hollow points, 60 &75 like the 60 gr but noticeable,  much more wind drift,  that the 65 v-max at 200m.
  
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Re: What 6x45 loads are you guys using?
Reply #29 - Aug 1st, 2017 at 10:38am
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Good stuff Canadakiwi  Cool It sounds sweeter with every report. See takbok reports that RL7 works really well with the light pills too. Be interested how you get on with those 80-85gr SP.
  
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Re: What 6x45 loads are you guys using?
Reply #30 - Aug 1st, 2017 at 1:31pm
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Yea, I am pretty impressed with it,

  
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Re: What 6x45 loads are you guys using?
Reply #31 - Aug 1st, 2017 at 3:41pm
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Thats mint shooting  Cool Cool Time to blood it man  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #32 - Aug 22nd, 2017 at 3:38pm
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Well, had the 6x45 back to the range to test 80-85 gr, and 58 gr v-max, also out to 300 M on the gongs,
Winchester Brass and Federal gold primers. 60 mm OAL
80gr Sierra, 26gr Benchmark, @2919, 5 shots 
                   26.5  BM gave x5 @2977, SD of 8.4 & X5 @ 2784
                    27gr BM gave x3 @ 3030, one tight lift on bolt, so Max for this rifle,

85gr Sierra 24gr Benchmark X3 @ 2631
                   24.5 BM            x3  @ 2668, SD 8.4
                   25    BM            x6  @ 2748, SD 23
                   25.5 BM            X6  @ 2800, SD 15,
all groups sub one inch, with Mangospeed installed,
26.6 gr BM and 80 Sierra Blitz, ten shots inside 0.531 of an inch,
58gr V-max , with H4198 giving 3199 fps, and reasonable accuracy, more room here for bit more speed.
Very happy after today, walked the 75gr HP sierra out to 300 m in 50m steps, quite a bit more wind drift than the 80gr sierra, so not sure which, I will settle on for a heavy load.
Going to try 85gr partions, for accuracy, next, 
Another few weeks till rifle season opens for whitetail deer, and back to NZ for a month Oct/ Nov, then 4x4 weeks shift from then on.
  
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Re: What 6x45 loads are you guys using?
Reply #33 - Aug 23rd, 2017 at 7:57am
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canadakiwi wrote on Aug 22nd, 2017 at 3:38pm:
Well, had the 6x45 back to the range to test 80-85 gr, and 58 gr v-max, also out to 300 M on the gongs,
Winchester Brass and Federal gold primers. 60 mm OAL
80gr Sierra, 26gr Benchmark, @2919, 5 shots 
                   26.5  BM gave x5 @2977, SD of 8.4 & X5 @ 2784
                    27gr BM gave x3 @ 3030, one tight lift on bolt, so Max for this rifle,

85gr Sierra 24gr Benchmark X3 @ 2631
                   24.5 BM            x3  @ 2668, SD 8.4
                   25    BM            x6  @ 2748, SD 23
                   25.5 BM            X6  @ 2800, SD 15,
all groups sub one inch, with Mangospeed installed,
26.6 gr BM and 80 Sierra Blitz, ten shots inside 0.531 of an inch,
58gr V-max , with H4198 giving 3199 fps, and reasonable accuracy, more room here for bit more speed.
Very happy after today, walked the 75gr HP sierra out to 300 m in 50m steps, quite a bit more wind drift than the 80gr sierra, so not sure which, I will settle on for a heavy load.
Going to try 85gr partions, for accuracy, next, 
Another few weeks till rifle season opens for whitetail deer, and back to NZ for a month Oct/ Nov, then 4x4 weeks shift from then on.


Good solid info there Canadakiwi for those looking at this type of caliber.
I see you didn't try the CFE223 again, too slow for the 85gr do you think? Mind you, I see your grouping is all sub moa so whats a few fps to a deer  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #34 - Aug 23rd, 2017 at 11:20am
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Mostly I tried Benchmark as was low on CFE.223, have now loaded up, a few rounds in 80gr at 27 and 27.5 gr and will test next days off for speed,
Thus far only the 55 gr Nosler B-tips aren't inside an inch, and the 75gr sierra Hollow points are the most accurate, I think the lapua brass, is helping on these loads.
Accuracy will tighten up a bit with the mango speed removed, as it moves around a bit, on the slightly tapered, cooper barrel.
  Have you used the 80 Sierra blitz on goats or small deer, ? hold up ok ?
I see a typo above, the second set of 5 shots with 26.5g of bench mark, should read 2984 fps.
Overall very impressed, likely stick to a 65 v-max at 3150 for a small game load,
the 75gr h-point for accuracy and goat hunting,
trying for a 80-85 for in the bush,
  
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Re: What 6x45 loads are you guys using?
Reply #35 - Aug 23rd, 2017 at 5:17pm
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Thanks for the info, canadakiwi.

I've picked up half a box of 75gr Sierra HP's to try (since Mathias had such good results with them) when I test the 70gr blitzkings. I'm running low on Xterminator so will have to see what other powders I can get my hands on.
  
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Re: What 6x45 loads are you guys using?
Reply #36 - Aug 23rd, 2017 at 7:17pm
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canadakiwi wrote on Aug 23rd, 2017 at 11:20am:
Mostly I tried Benchmark as was low on CFE.223, have now loaded up, a few rounds in 80gr at 27 and 27.5 gr and will test next days off for speed,
Thus far only the 55 gr Nosler B-tips aren't inside an inch, and the 75gr sierra Hollow points are the most accurate, I think the lapua brass, is helping on these loads.
Accuracy will tighten up a bit with the mango speed removed, as it moves around a bit, on the slightly tapered, cooper barrel.
  Have you used the 80 Sierra blitz on goats or small deer, ? hold up ok ?
I see a typo above, the second set of 5 shots with 26.5g of bench mark, should read 2984 fps.
Overall very impressed, likely stick to a 65 v-max at 3150 for a small game load,
the 75gr h-point for accuracy and goat hunting,
trying for a 80-85 for in the bush,


I haven't shot any animals yet with any other bullets. The 75gr HP were recommended based on the fact that even though they are marked as a varmint bullet, their construction is for use in hot 6mms, so at 6x45 speeds they behave like a hunting bullet and I've found this to be true. They are really accurate in my 1:10 barrel and you are finding the same. I do have a few loads ready of the old discontinued Nosler 75gr Solid Base. Got a full pack and will try some on goats next month hopefully. I'm still yet to load some 85gr HP Sierra and try. If they shoot ok, then I'll give these ago on some reds. Have only used H335, but will give CFE223 ago to.

Keep up the great reports  Cool
  
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Re: What 6x45 loads are you guys using?
Reply #37 - Sep 4th, 2017 at 10:50am
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Just a brief update from me. Weather was shit yesterday but managed to fire a few off out of my 6x45. I loaded up some 85gr HPBT Sierra behind H335 & CFE223. Reached too much pressure early with the H335 before decent return of velocity. CFE223 starting load was same velocity as finishing load of H335 and no pressure signs. End result was, I reckon I could have gone another 0.5gr of CFE223 as my max load I'd made was just showing some primer sign of pressure. I did get just over 2800fps, low ES for the 3 shot group of 15mm. I was shooting over the bonnet of my truck down the river, so I would expect I would do better at the range, prone position for sure. All groupings were good, so this bullet suits my 1:10 barrel. Conclusion, H335 is a great powder up to 75gr bullet weight and the slower CFE223 takes over and works best for heavier bullets Smiley
  
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Re: What 6x45 loads are you guys using?
Reply #38 - Sep 20th, 2017 at 2:50pm
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Just got back from the city, no 85gr partions to be had, but $50 got me 200 speer 85gr boat-tail soft points to try,
Hopefully try, a few out in the morning.
Mathais, I see you have come to the same conclusion as me, with H335, I am likling benchmark, for versitiaty, 58gr-85g and CFE223 seams to give me slightly, better speeds.
H335 seams to be a dirty powder in my rifle, going to try a few more loads with H4381 for a light varmint bullet.
Hopefully a few more results, tomorrow night.
  
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Re: What 6x45 loads are you guys using?
Reply #39 - Sep 20th, 2017 at 3:38pm
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canadakiwi wrote on Sep 20th, 2017 at 2:50pm:
Just got back from the city, no 85gr partions to be had, but $50 got me 200 speer 85gr boat-tail soft points to try,
Hopefully try, a few out in the morning.
Mathais, I see you have come to the same conclusion as me, with H335, I am likling benchmark, for versitiaty, 58gr-85g and CFE223 seams to give me slightly, better speeds.
H335 seams to be a dirty powder in my rifle, going to try a few more loads with H4381 for a light varmint bullet.
Hopefully a few more results, tomorrow night.


Yep, H335 is like burning coal, leaves the chimney pretty dirty  Grin

I've got a few more 85gr HPBT Sierra loaded up with the CFE to see where my max is and accuracy. Just got to get time now.
  
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Re: What 6x45 loads are you guys using?
Reply #40 - Sep 20th, 2017 at 7:35pm
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I'm loving this thread... Mathias... nay chance of getting some good photos of your rifle up?
  

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Re: What 6x45 loads are you guys using?
Reply #41 - Sep 20th, 2017 at 10:34pm
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I ran some lighter jacketed bullet loads over the chronograph on the weekend. Here are the results (20.5" barrel). I'll try and shoot some groups soon.

1. 75gr Sierra HP, PPU brass, CCI 450primers, 2.28" OAL (Bullet touching rifling at about 2.3")

Ramshot Xterminator

26.5gr - 2901fps
27.0gr - 2924fps

2. 75gr Sierra HP, Reloder 7, 2.28" OAL

23.0gr - 2941fps, 2978fps (both flattened primers but case head fine).
23.5-no reading, Primer flattened & extruded into firing pin hole.

3. 70gr Sierra Blitzking, Reloder7, 2.36" OAL (to fit magazine, no indications of bullet touching rifling).

23.5gr - 3012fps ,2996 fps
24.0gr-3115 fps
24.5gr-3177 fps
25.0gr-3213fps (pierced primer)
  
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Re: What 6x45 loads are you guys using?
Reply #42 - Sep 21st, 2017 at 2:56am
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Takbok, nice to see your results, I think you would be better off, with a slightly slower burn rate powder, that Reloader 7 with the 70-75 gr bullet weight. Benchmark, H335, Varget, N133-135, H4895, if you have them aviable.
what make rifle is yours ?
  
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Re: What 6x45 loads are you guys using?
Reply #43 - Sep 21st, 2017 at 9:29am
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Yes, I must admit that Reloder 7 is a tad fast for 70gr and up - just checked the cases again and they're showing higher pressure than the Xterminator loads. I was just interested in seeing what it could do.

Since Xterminator supply seems to have dried up here I'll look for the next cheapest option!

Rifle is a Sako 75 with 1:8 Pac-Nor barrel.
  
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Re: What 6x45 loads are you guys using?
Reply #44 - Sep 21st, 2017 at 10:52am
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seventenths wrote on Sep 20th, 2017 at 7:35pm:
I'm loving this thread... Mathias... nay chance of getting some good photos of your rifle up?


I'll try & sort a pic out for ya, might be a week or so before I can  Smiley



  
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Re: What 6x45 loads are you guys using?
Reply #45 - Sep 21st, 2017 at 12:08pm
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well just got back from the range, the Speer 85gr boattails were a wash, didn't hit the A4 paper at 100m, so put 4 sheets together and still didn't hit them, Shocked gave them up as a lost cause, everything else shot well.  speed was slow at 2576 with 26.5g of CFE.223, guess I will pull rest of bullets.

80gr sierra blitz with CFE.223 26.5g x5   @ 2695  s/d 22
                                             27g    x10 @ 2740 s/d 23 

85gr Sierra varmint   CFE.223 26.5   x5  @ 2685 s/d 10 
                                             27g    x10  @ 2750 S/d 11

75v-max                  CFE.223  28.5  x10   @2944 s/d 21

The 85gr sierra flat base shoot very well, 2 three shot groups at 200m at 26mm and 35mm, very good groups with the 75gr v-max, 80gr blitz and 85gr sierra varmint at 100m, 12 to 20mm,  1/2 to 3/4 for 5 shots, with mangospeed removed.

Looks like CFE.223 is not giving the same speed as benchmark with these bullet weights, but its hard to argue that's any real problem, with a couple 1"and 1.5" groups at 200m.  Cool
rifle seams to favour flat base bullets,
Will retest next days off, with a bit more powder (CFE) on the 80-85gr Sierra bullets. hoping for another 100-150 fps.
  
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Re: What 6x45 loads are you guys using?
Reply #46 - Sep 22nd, 2017 at 9:01am
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canadakiwi wrote on Sep 21st, 2017 at 12:08pm:
well just got back from the range, the Speer 85gr boattails were a wash, didn't hit the A4 paper at 100m, so put 4 sheets together and still didn't hit them, Shocked gave them up as a lost cause, everything else shot well.  speed was slow at 2576 with 26.5g of CFE.223, guess I will pull rest of bullets.

80gr sierra blitz with CFE.223 26.5g x5   @ 2695  s/d 22
                                             27g    x10 @ 2740 s/d 23 

85gr Sierra varmint   CFE.223 26.5   x5  @ 2685 s/d 10 
                                             27g    x10  @ 2750 S/d 11

75v-max                  CFE.223  28.5  x10   @2944 s/d 21

The 85gr sierra flat base shoot very well, 2 three shot groups at 200m at 26mm and 35mm, very good groups with the 75gr v-max, 80gr blitz and 85gr sierra varmint at 100m, 12 to 20mm,  1/2 to 3/4 for 5 shots, with mangospeed removed.

Looks like CFE.223 is not giving the same speed as benchmark with these bullet weights, but its hard to argue that's any real problem, with a couple 1"and 1.5" groups at 200m.  Cool
rifle seams to favour flat base bullets,
Will retest next days off, with a bit more powder (CFE) on the 80-85gr Sierra bullets. hoping for another 100-150 fps.


interesting
im my 264/204case i get good results from the 90 gr speer tnt
getting 3100fps with 28.1 of 2207 and winchester primers,,slightly faster with federal but pressure sings
  

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Re: What 6x45 loads are you guys using?
Reply #47 - Sep 27th, 2017 at 4:02pm
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seventenths wrote on Sep 20th, 2017 at 7:35pm:
I'm loving this thread... Mathias... nay chance of getting some good photos of your rifle up?


Here's a pic of my Sako 6x45 for you seventenths
L461, TF barrel at 23" ODL suppressor & Zeiss scope

  
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Re: What 6x45 loads are you guys using?
Reply #48 - Sep 28th, 2017 at 11:38am
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OUTSTANDING.... Very  Cool Cool Cool Cool Cool

there's alot to be said for those old sakos
  

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Re: What 6x45 loads are you guys using?
Reply #49 - Oct 1st, 2017 at 10:01am
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seventenths wrote on Sep 28th, 2017 at 11:38am:
OUTSTANDING.... Very  Cool Cool Cool Cool Cool

there's alot to be said for those old sakos


Cheers, yes it's my fav rifle that one. Made it out of an old 223 Target rifle that had a home made stock. Stock on it now was a TM deal, with a bit of TLC from me. Very much a South Island barrel length tho'  Wink

You could do the same with your 222, just get it rebarreled and put the original aside for originality purpose if you wanted to return it back to 222. Robbie at Gunworks has the reamer but you will be limited to the shorter profiled bullets due to the Sako mag length, unless of course you don't care about a bit of bullet jump. I found that the Sierra HP in 75gr & 85gr are just right with about 0.5mm jump.

Final load testing done yesterday with 27.8gr of CFE223 & 85gr HPBT Sierra gave 2880fps average with an ES 4, so I'll stick with this  Smiley Outright speed is not essential for a 300m rifle and I think this isn't bad for a 223 case & 85gr pill.
  
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Re: What 6x45 loads are you guys using?
Reply #50 - Oct 2nd, 2017 at 2:46am
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That's good speed there Mathias, I have a few more loads, done up with CfE and 85gr sierra flatbase, let us know how they work on game, I test mine in next ten days or so.
Be interesting to compare, what primers and brass are you using? 

I have just applied for export and import permits to get my Cooper to NZ.
Hopefully all done, before I fly back for six weeks holidays 1st November. If not back in January.
  
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Re: What 6x45 loads are you guys using?
Reply #51 - Oct 2nd, 2017 at 9:38am
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canadakiwi wrote on Oct 2nd, 2017 at 2:46am:
That's good speed there Mathias, I have a few more loads, done up with CfE and 85gr sierra flatbase, let us know how they work on game, I test mine in next ten days or so.
Be interesting to compare, what primers and brass are you using? 

I have just applied for export and import permits to get my Cooper to NZ.
Hopefully all done, before I fly back for six weeks holidays 1st November. If not back in January.


Using Remington brass & CCI BR4 primers. Brass is once fired from a heap of cheap UMC 50gr HP I ran through my 223. I'm surprised the BT are running as good as they are as the barrel really prefers flat base from past experience. Will trial on animals closer to xmas unless I can get out a bit earlier.
Good to see the Cooper is coming to NZ, such an awesome looking rifle  Cool
  
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Re: What 6x45 loads are you guys using?
Reply #52 - Oct 14th, 2017 at 4:21am
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Well had the cooper, out again yesterday, final few loads checked and decide, what I am going to run with. Before bring rifle to NZ, permits to Export/Import now in place.
sticking with the
          85gr serria CFE.223 27.5gr for 2760fps        63.3mm OAL
          75gr Serria HP with CFE.223 28.5 for 3000fps.  58.85mm
          65gr v-max with H335 26.5g, for 3150fps,   63mm Oal
                               or Benchmark 27g for 3160       "
All above loads, are same point of impact at 100m.

Tested the 58gr v-max a bit higher charge
24.5 H4198 for 3230fps extremely accurate x5 at 0.31" and x5@.0.36" with mangospeed on, at 100M, sadly two inch lower that sights at 100m,
25gr           for 3288fps,  0.56 for 6 shots.

Took the 85 and 80 serria out to 200m, with the 85gr and 65gr v-max. both pretty close to same point of impact,
shot a very good group at 200m with the 80gr, z5 into 1.5", due to cold conditions, my shoot had started to get worse, the odd flyier. 
 
Put a Few shots threw My cooper single shot, M21 6x47 Remington, New Nosler .222mag brass, Br-4 and CFE.223 28gr and a 75gr Serria hollow point, 0.23 four shoots, @100m,  Smiley
and 70gr Balistic tip, CFE.223, 30gr four shots into 1.1 at 200m. Cool
Just wish it was a repeater, not a single shot.

cold miserable conditions, -5 and windy, took the cooper 6x45 for a hunt yesterday afternoon, no deer seen.
  
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Re: What 6x45 loads are you guys using?
Reply #53 - Oct 14th, 2017 at 8:21am
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Nice canadakiwi  Cool Cool Great how the three loads are same POI at 100.
Does your mag allow 63+mm OAL loads?
  
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Re: What 6x45 loads are you guys using?
Reply #54 - Oct 14th, 2017 at 9:24am
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Mathias wrote on Oct 14th, 2017 at 8:21am:
Nice canadakiwi  Cool Cool Great how the three loads are same POI at 100.
Does your mag allow 63+mm OAL loads?


Its a typo, should be 60.30mm, still a bit off room, magazine lenght is 61.5mm or so.
Yea getting a few loads, to same point of impact, has been the goal, gives a bit of flexablity, but rifle puts everything, on the same vertical axcess, about a 70mm spread between the low 58grain v-max and high 85gr soft point at 100m.
  
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Re: What 6x45 loads are you guys using?
Reply #55 - Oct 23rd, 2017 at 9:08am
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LABOUR DAY CLEARANCE SPECIAL

@https://blackwatchreloading.co.nz/product/hornady-projectiles/

HORNADY 6.5MM 129GR SST. Grab them before they're all snapped up!!
  
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Re: What 6x45 loads are you guys using?
Reply #56 - Apr 17th, 2018 at 7:40pm
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Mathias wrote on Feb 7th, 2017 at 8:29pm:
Hi takbok, I'm running an L461 Sako with 23"Trueflite barrel 1:10
I'm mostly using 75gr Sierra HP bullets behind Hodgson H335.


What charge weight are you running?

I have played with 26gn of H335 and 75gr Vmax and Sierra HP pills. They both worked nicely and grouped in the same location.

Out of interest I had some 105gn Amax pills lying about and I threw some H414 under them. This is what happened when I poked them out to 200yards. Only loaded the 3. Wish I had put more effort into the shots, I was using my hunting scope (VX6) on 12x.



Most of my loads will be under the 85gn however.

The barrel is a 1in8" twist and 18".

  
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Re: What 6x45 loads are you guys using?
Reply #57 - Apr 18th, 2018 at 5:57pm
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6x45 wrote on Apr 17th, 2018 at 7:40pm:
Mathias wrote on Feb 7th, 2017 at 8:29pm:
Hi takbok, I'm running an L461 Sako with 23"Trueflite barrel 1:10
I'm mostly using 75gr Sierra HP bullets behind Hodgson H335.


What charge weight are you running?

I have played with 26gn of H335 and 75gr Vmax and Sierra HP pills. They both worked nicely and grouped in the same location.

Out of interest I had some 105gn Amax pills lying about and I threw some H414 under them. This is what happened when I poked them out to 200yards. Only loaded the 3. Wish I had put more effort into the shots, I was using my hunting scope (VX6) on 12x.



Most of my loads will be under the 85gn however.

The barrel is a 1in8" twist and 18".



Just checked my book and it's 27.5 of H335 with a 75gr Sierra.

Thats a good group with the 105's  Cool
  
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Re: What 6x45 loads are you guys using?
Reply #58 - May 2nd, 2018 at 1:01pm
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I chrony'd my 75Vmax load today.

2875 fps woth 26gns of H335. It's shooting okay but I know this rifle can do better. 26gns is pretty conservative. I'll go back to the drawing board with this sometime and work it up a bit hotter.

Started playing with 55gr Nosler BT pills today as well. Trying to get some fps.

H335 28gr 3074
H322 27gr 3066
Benchmark 27hr 2965 (ADI BM2)
2206H 28gr 2956. Wont be able to get too much more of this in the case, it was compressed.

This is out of the 18" 1:8 twist barrel.

H335 has plenty of wiggle room in the case. The rest were near the top. No signs on too much pressure there.

I've loaded 5 with H335 and 5 with H322. Will see how they go when I get a chance.

Also keen to pick up some VV133 or 135.

Some other sources of 6x45 data
http://blog.westernpowders.com/wp-content/uploads/2016/02/WesternLoadGuide1-2016...
http://www.adi-powders.com.au/handloaders/rifle.asp?Calibre=6+x+45mm+%286mm-223%...

  
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Re: What 6x45 loads are you guys using?
Reply #59 - May 3rd, 2018 at 10:01am
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I'm liking your results there 6x45

I've always wanted a 6x45 and Mathias has been a bad influence!

I looked for a Sako Vixen action last year to modify but when i bought a Sako A1 in great condition i left it as is but i've since bought a second hand Remington ADL in .223 so that will be my donor rifle.

I'm wanting to run a shorter 18-20 inch barrel with 75 gr projectiles... keen to know what your thoughts are with bullet speeds etc???

What is your rifle?
  

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Re: What 6x45 loads are you guys using?
Reply #60 - May 3rd, 2018 at 3:03pm
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Few more results.

55gr Noslers again under 28gr N133 = 3214fps. So gained some fps there with a change of powder.

Accuracy wise, average to poor 1.5MOA which in this cal should be better. The N113 on first glance looked to show the most promise.

The distance these little 55gr pills have to jump to the lands is rather large as the freebore in this rifle was made to suit pills in the 70-85gr range with 75gr being optimum.

Tried some 75gr Speer flat base under 25gr N113 did around 2817 for 1MOA.

There were no real pressure signs anywhere so I think I have some start points. I cant get enough N113 into the case for 55gr pills anyway so that option is out. Seems to be spot on for 75gr projectiles however so will use it up there.

All good stuff.


  
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Re: What 6x45 loads are you guys using?
Reply #61 - May 4th, 2018 at 10:43am
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Light 55's are fun to try, but the real advantage with the 6x45 is 75-85gr. Your 1:8 has shown it's preference for the heavier weight. Be good to see the results of those 75's with a bit more H335  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #62 - May 4th, 2018 at 1:43pm
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I think 27.5gr H335 is about Max for me with the 75's. The 1:8 twist likely produces slightly higher pressures than say a 1:10 or 1:12.

I've got some Speer 75gr flat base pills to try as well now. The 6x45 likes the flat base pills is what I am hearing out there, certainly gives a bit more bearing surface in the neck area which helps get the ogive closer to the lands and also helps with room behind the pill for powder.

I'll keep ticking away.
  
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Re: What 6x45 loads are you guys using?
Reply #63 - May 4th, 2018 at 3:59pm
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6x45 wrote on May 4th, 2018 at 1:43pm:
I have some H4198 that I should put behind the remaining 55gr Noslers to see how they shoot.

I think 27.5gr H335 is about Max for me with the 75's. The 1:8 twist likely produces slightly higher pressures than say a 1:10 or 1:12.

I've got some Speer 75gr flat base pills to try as well now. The 6x45 likes the flat base pills is what I am hearing out there, certainly gives a bit more bearing surface in the neck area which helps get the ogive closer to the lands and also helps with room behind the pill for powder.

I'll keep ticking away.


Yep the Sierra 75gr HP I use are flat base and they go well. The Sierra BTHP in 85gr (Game King) showed good stability in my 1:10 and I will be back onto them as well soon.

All looking good 6x45  Smiley
  
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Re: What 6x45 loads are you guys using?
Reply #64 - May 4th, 2018 at 5:01pm
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Im wondering if I am worrying about my distance to lands to much. Most ppl are restricted by mag length and I went to some trouble to increase mine to around 2.4" (I should measure it again). Lots of the load data I have seem to be in the 2.260COL range.

My current 75gr pill load has about 5mm of pill inside the neck. Maybe I should increase that to at least the bullet diameter as commonly recommended?

Anyway, 27.5gr of H335 behind a 75gr FB Speer gives me 2884 out the 18" tube. Think after 26.0grs of H335 I have reached the point of diminishing returns out of this setup as I get 2875 fps with that load with the 75gr Seirra FB.

It's a pretty sweet and forgiving cartridge to play with.

Have some RL10X here as well and Varget.

I was told the VV powders are going up 100% in NZ soon. I got the last N133 1lb tub the shop had left. Plenty to play with.

  
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Re: What 6x45 loads are you guys using?
Reply #65 - May 5th, 2018 at 1:31pm
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Had a play with finding a start point for Reloder 10X and the left over 55gn Noslers this morning. Hard to find data on the RL10X so I started at 223 55gr loads and soon figured out that wouldnt be enough for the 6mm 55gr pill in 6x45.

23gr = 2552fps. WAY slow and the primer looked like it a nice round mushroom. Similar story all the way up to 25.5gr when I hit 2822fps. Still slow and primer looked okay. The black marks are just dirty brass, got a ton of 223 brass from the M4 culling days.



Got up to 26.5 and still no reel pressure signs. Hit 3043fps here

Primer still okay, maybe a bit of a mark from the extractor but hard to see.



Loaded 3 sets of 3 around 26.5gr of RL10X and will have a play with them later to see if they shoot.

The only data I could locate for the RL-10X was 24.8gr developing 52.0KPSI but the is in a tottally different setup. Out on a limb here but no reel pressure signs and I'm just getting the powder to below the bullet base. The chrony results would also suggest I'm conservative.
  
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Re: What 6x45 loads are you guys using?
Reply #66 - May 5th, 2018 at 8:52pm
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Quickload (with "factory settings except for barrel length which I've set to the 18" you mentioned) says 26.5 of RL 10x should give you 3287 fps at 53,379 psi.  A measurement of fired case capacity in H2O and COAL would allow Quickload to hone in a bit closer to your actual rifle.
  
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Re: What 6x45 loads are you guys using?
Reply #67 - May 6th, 2018 at 7:30am
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ArmedTramper wrote on May 5th, 2018 at 8:52pm:
Quickload (with "factory settings except for barrel length which I've set to the 18" you mentioned) says 26.5 of RL 10x should give you 3287 fps at 53,379 psi.  A measurement of fired case capacity in H2O and COAL would allow Quickload to hone in a bit closer to your actual rifle.


Thanks heaps. Good to know.

My COAL = 59.15mm and the H20 cap of the case is 30.8gr as best I could figure. There were variances in the brass which wasnt helping and wont be helping. Its FC brass.

Out of interest I made a 100gr load using 5.7gr of TRAILBOSS and was getting 1020fps. With the can on it was printing holes at 60yards but was way to low to get out to 100 on how my scope was set up. Cool way to get rid of 100gr pills I am never going to use anywhere else.
« Last Edit: May 6th, 2018 at 3:52pm by 6x45 »  
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Re: What 6x45 loads are you guys using?
Reply #68 - May 7th, 2018 at 11:01am
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Mathias wrote on May 4th, 2018 at 10:43am:
Light 55's are fun to try, but the real advantage with the 6x45 is 75-85gr. Your 1:8 has shown it's preference for the heavier weight. Be good to see the results of those 75's with a bit more H335  Wink


Well I went a little bit more for you. 27.5gr H335 under the Sierra 75 #1510's. 5 shots at 100yds.



This is definitely the top end for my rifle. Primers getting flat now and slight cratering on some I noticed.

Clipping along at 2975fps today (which is about 100fps faster than QL predicts). COAL was 60.2mm which means I have 5.18mm held in the case neck. I can get closer to the lands with this pill but I've always believed you need a bullet diameter held in the case? Although some info suggests as long as it is "holding" the projectile.

I'm ordering some new brass, time to get serious on the development front now.


  
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Re: What 6x45 loads are you guys using?
Reply #69 - May 7th, 2018 at 3:34pm
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6x45 wrote on May 7th, 2018 at 11:01am:
Mathias wrote on May 4th, 2018 at 10:43am:
Light 55's are fun to try, but the real advantage with the 6x45 is 75-85gr. Your 1:8 has shown it's preference for the heavier weight. Be good to see the results of those 75's with a bit more H335  Wink


Well I went a little bit more for you. 27.5gr H335 under the Sierra 75 #1510's. 5 shots at 100yds.



This is definitely the top end for my rifle. Primers getting flat now and slight cratering on some I noticed.

Clipping along at 2975fps today (which is about 100fps faster than QL predicts). COAL was 60.2mm which means I have 5.18mm held in the case neck. I can get closer to the lands with this pill but I've always believed you need a bullet diameter held in the case? Although some info suggests as long as it is "holding" the projectile.

I'm ordering some new brass, time to get serious on the development front now.



That looks familiar for a 6x45  Wink   They are a very accurate little bullet. I get a slightly flattened primer too and have never gone past that load weight. Good speed from an 18" barrel too  Cool


  
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Re: What 6x45 loads are you guys using?
Reply #70 - May 10th, 2018 at 7:20am
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nice results there 6x45,
That group with the 105 A-Max at 200m looks pretty good, do you know what speed they doing ?

  
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Re: What 6x45 loads are you guys using?
Reply #71 - May 10th, 2018 at 5:15pm
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canadakiwi wrote on May 10th, 2018 at 7:20am:
nice results there 6x45,
That group with the 105 A-Max at 200m looks pretty good, do you know what speed they doing ?



Nah. I only threw 3 down range to see if they would even work. Surprised me for sure. Prob only got a 1/4 cup of H414 left and maybe a doz of those AMax pills so I wont be going down that road too far. They'd be slow and I doubt they would be that stable after 300yards.
  
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Re: What 6x45 loads are you guys using?
Reply #72 - May 10th, 2018 at 7:43pm
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seventenths wrote on May 3rd, 2018 at 10:01am:
I'm liking your results there 6x45

I've always wanted a 6x45 and Mathias has been a bad influence!

I looked for a Sako Vixen action last year to modify but when i bought a Sako A1 in great condition i left it as is but i've since bought a second hand Remington ADL in .223 so that will be my donor rifle.

I'm wanting to run a shorter 18-20 inch barrel with 75 gr projectiles... keen to know what your thoughts are with bullet speeds etc???

What is your rifle?


Sorry only just saw this.

My rifle is a Tikka T3. Barrel is a Hardy 1:8. 18". Can is theirs also, a Gen VI. The jury is out for me on how good the can is, but it is fine. Ive had better and Ive had more expensive. Always liked my ACE Jet-Z.

MAKE SURE whatever you do you make sure you get the freebore spot on for 75-85grain pills. You want to get them seated as far out as reasonably possible so they dont take up too much case room.  There simply isn't enough room in the 6x45 boiler to make it any real use for 90-105gr 6mm pills. Everything I have read or heard tells me it was made for the 75-85gr pill range.

Also make sure you design your setup so you can have a mag that handles loads 2.4"-2.5" OAL. I went for a AI setup and changed the bottom metal on my Tikka so it takes AI mags.
« Last Edit: May 11th, 2018 at 6:47am by 6x45 »  
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Re: What 6x45 loads are you guys using?
Reply #73 - May 11th, 2018 at 3:50pm
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6x45 wrote on May 10th, 2018 at 7:43pm:
seventenths wrote on May 3rd, 2018 at 10:01am:
I'm liking your results there 6x45

I've always wanted a 6x45 and Mathias has been a bad influence!

I looked for a Sako Vixen action last year to modify but when i bought a Sako A1 in great condition i left it as is but i've since bought a second hand Remington ADL in .223 so that will be my donor rifle.

I'm wanting to run a shorter 18-20 inch barrel with 75 gr projectiles... keen to know what your thoughts are with bullet speeds etc???

What is your rifle?


Sorry only just saw this.

My rifle is a Tikka T3. Barrel is a Hardy 1:8. 18". Can is theirs also, a Gen VI. The jury is out for me on how good the can is, but it is fine. Ive had better and Ive had more expensive. Always liked my ACE Jet-Z.

MAKE SURE whatever you do you make sure you get the freebore spot on for 75-85grain pills. You want to get them seated as far out as reasonably possible so they dont take up too much case room.  There simply isn't enough room in the 6x45 boiler to make it any real use for 90-105gr 6mm pills. Everything I have read or heard tells me it was made for the 75-85gr pill range.

Also make sure you design your setup so you can have a mag that handles loads 2.4"-2.5" OAL. I went for a AI setup and changed the bottom metal on my Tikka so it takes AI mags.


Long throating - freebore, whatever you want to call it can be a bit misleading. By making your throat longer and seating out your bullets to create more room for powder can have diminishing returns after a point. I know as I have been there & done that with another caliber and the net result achieved was 1/2gr more powder required to achieve the same velocity before lengthening the throat. Anyone with Quickload will work this out, without doing the actual exercise.
Definitely make sure you get the bullets out of the shoulder area and at base of neck minimum if you can. On mine, any pointy bullet with a long ogive reaches the lands at about 60-61.5mm but my mag only does 58.5mm, thats why I use the older style blunt profile bullets so I can get close enough to lands.
  
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Re: What 6x45 loads are you guys using?
Reply #74 - May 11th, 2018 at 4:47pm
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Good info.

I cant get my 75gr Seirra FB #1510 pills close to the lands. I cant remember the actual OAL but I think I used QL to put them at 60.38mm OAL which is about 5mm into the neck.

The 85gr Seirra #1520 will be pretty close to spot on when they arrive.

Also the Barnes 62gr Varmint Grenade when loaded to the recommened 0.050" off the lands makes them 61.47mm OAL for me which takes up a bit of room in the case because the end up being seated 8mm into the case neck. That pill is 0.978" long.

Its all fun stuff. I've got some CFE223 on the way as well. I've heard that needs to be near max to burn clean but looks promising for the 75-85gr pill range. I've got plenty to play with for now.

Does anyone know why there are 2 choices in Quickload for 6x45? One is 6x45mm the other is 6x45 (223). They are slightly different and give different outputs.
  
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Re: What 6x45 loads are you guys using?
Reply #75 - May 11th, 2018 at 5:21pm
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Yep CFE223 is nice at near full throttle. I got better results with that and 85gr Sierra #1530 than with H335. More velocity before pressure signs.
  
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Re: What 6x45 loads are you guys using?
Reply #76 - May 22nd, 2018 at 1:09pm
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I've added something to the reloading arsenal

  
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Re: What 6x45 loads are you guys using?
Reply #77 - May 22nd, 2018 at 4:39pm
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^^ Cool ^^
  
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Re: What 6x45 loads are you guys using?
Reply #78 - Jun 22nd, 2018 at 11:49am
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Had a play with new the 62gr Barnes varmint grenade this morning. Nice results. Nice thing about this pill is that they a long so I can get them the recommended 0.050" off the lands and still have 7.7mm odd back in the case. COAL is 2.430"

I only got a sample pack of 15 and tried 3 powders, N133, H322 and H335.

I have new brass which I have put thru the AMP machine and annealed. Primers Fed match.

26gr of N133 gives nice velocity's but I really cant get enough in there to go beyond the 26gr which is about max anyway. Av for 4 shots was 3098fps with an es of 45.

26gr of H322 gave a nice 18mm 4 shot group but fps was down at 2961 with an es of 61. I could squeeze another 0.5grs in there but Quickload show pressure increases a lot after 26gr.

Again H335 came out on top in accuracy and speed. 28gr giving a little 12.19mm 4 shot group at 3160fps (which is about 70fps more than QL predicted). That is a good finish point and it was really only to get an idea.



With this new annealed brass I also finished off by loading the 27.5gr of H335 behind the #1510 Sierra 75gr pill. The first shot was out of the cold barrel and also after the 12 rnds of Barnes so that is likely why it went a bit higher than the others. Still the 5 shot group was 22mm and the last 4 shots went under 12.5mm. Speed was 2953fps



Im starting to like this rifle.

I'll get a box of these 62gr Barnes pills and load 'em up I think. Thats a nice speed and I do like the Barnes pills when they shoot good.

I have some CFE223 and 85gr Sierra's FB to try next
  
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Re: What 6x45 loads are you guys using?
Reply #79 - Jun 22nd, 2018 at 1:28pm
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Had a quick intro into CFE223 and the 85gr #1520 Sierra.

Promise there too.

I think 29gr was getting near max. Fps at 2783.
28.5gr gave 2741fps av.

Both shot under 13mm 4 shot groups. Although I think the 29gr gave a nicer pattern and was sub .25MOA.

COAL was 2.480". About 0.015" off the lands.

I could prob get a little more than 29gr of CFE in there looking at the pressure signs. Maybe as much as 29.5

@Mathias I see from a couple of posts ago your CFE load is 27.8gr of CFE223 & 85gr HPBT Sierra gave 2880fps. Did you ever go higher than that? At 29gr I'm only starting to see pressure signs.

.
« Last Edit: Jun 28th, 2018 at 7:18am by 6x45 »  
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Re: What 6x45 loads are you guys using?
Reply #80 - Jun 22nd, 2018 at 3:52pm
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6x45 wrote on Jun 22nd, 2018 at 1:28pm:
Had a quick intro into CFE223 and the 85gr #1520 Sierra.

Promise there too.

I think 29gr was getting near max. Fps at 2783.
28.5gr gave 2741fps av.

Both shot under 13mm 4 shot groups. Although I think the 29gr gave a nicer pattern and was sub .25MOA.

COAL was 2.480". About 0.015" off the lands.

I could prob get a little more than 29gr of CFE in there looking at the pressure signs. Maybe as much as 29.5

@Mathias I see from a couple of posts ago your CFE load is 27.8gr of CFE223 & 85gr HPBT Sierra gave 2880fps. Did you ever go higher than that? At 29gr I'm only starting to see pressure signs.

.


Been a while since I have played with the 6x45 and I can't recall going any higher, I'll consult my load book to see my comments. I'm at 2.3" OAL and hence I will have higher pressure than you at that length.

I have a 23" barrel so I'm picking up good speed there. Your speed & accuracy is pretty bloody good. The #1520 will have more bearing surface compared to the #1530 I'm using and could result a few less fps.

Keep posting the results, it's encouraging me to put my Grendel away and get the 6 back out  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #81 - Jun 24th, 2018 at 12:25pm
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NOTE: Had a FUBAR with my Hornady OAL guage on the last outing. Turns out the 6x45 round that was used to make the case for the guage wasnt sized properly. I wondered why my last loads seemed rather long (by @ 0.05").

So I went back to the tried and true using the cleaning rod to measure COAL i/e to bolt face etc etc.

Forced me to check everything I have measured using that tool.


Found an interesting post showing various pills used in the 6x45 and how much room they take up inside the case compared to 223.



left to right; Hornady .223 Match 75 gr. HPBT, Sierra 6mm 70 gr. HPBT, Speer 6mm 75 gr. HP, Berger 6mm 80 gr. FB Varmint, Sierra 6mm 85 gr. HPBT. (GameKing) The 6mm 85 gr. GameKing is actually .020" shorter than the Hornady .223 75 gr. HPBT.

The Hornady 6mm 87 gr. HPBT is even shorter than the 75 gr. .223.

.

  
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Re: What 6x45 loads are you guys using?
Reply #82 - Jun 24th, 2018 at 7:52pm
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6x45 wrote on Jun 22nd, 2018 at 1:28pm:
@Mathias I see from a couple of posts ago your CFE load is 27.8gr of CFE223 & 85gr HPBT Sierra gave 2880fps. Did you ever go higher than that? At 29gr I'm only starting to see pressure signs.

.


Just checked my load book and I went as far as 28.3gr CFE223 for 2918fps and had a note saying very flat primers & some cratering. Better accuracy at 27.8  Smiley

  
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Re: What 6x45 loads are you guys using?
Reply #83 - Jun 27th, 2018 at 5:09am
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I took my cooper to 28.5 with the 85gr and CFE.223 and
29gr with the 75 & 80 gr, think thats about max, very flat primers, and intrestingly you can hear the note change, in the rifle, almost started ringing, if that makes any sence,
My info is a few pages back, but think i settled for, 1g less than that,
Nothing wrong with a 80-85gr at 2850.


For reference, Ive just croneyed a load in my 6x47 Remington (.222 magnum/6mm) Cooper single shot M22.
30gr CFE.223 with a 70 B-tip giving 3050fps, 22" tube, pretty flat primers.
How you like that Annealing machine, I'm think of upgrading from a gas torch,

  
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Re: What 6x45 loads are you guys using?
Reply #84 - Jun 27th, 2018 at 12:12pm
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canadakiwi wrote on Jun 27th, 2018 at 5:09am:
I took my cooper to 28.5 with the 85gr and CFE.223 and
29gr with the 75 & 80 gr, think thats about max, very flat primers, and intrestingly you can hear the note change, in the rifle, almost started ringing, if that makes any sence,
My info is a few pages back, but think i settled for, 1g less than that,
Nothing wrong with a 80-85gr at 2850.


For reference, Ive just croneyed a load in my 6x47 Remington (.222 magnum/6mm) Cooper single shot M22.
30gr CFE.223 with a 70 B-tip giving 3050fps, 22" tube, pretty flat primers.
How you like that Annealing machine, I'm think of upgrading from a gas torch,



Firstly the AMP machine is the ducks nuts. Can do heaps of brass in no time and there is no comparison. Local supply cant keep up with demand in the USA.

I just tinkered a bit more with my seating depth now I have my COAL sorted properly.

With the CFE223 and 85gr #1520 pills Im now at 2.370".

I shot 3 x 3shot groups this morning at 28.3/28.5/28.7.  Below is a pic of all 3 groups superimposed. They all went in the same general area with the 28.7gr group making a 12.19mm group more towards the centre axis than the others.



Average FPS for the 28.7gr load was 2766. Total FPS range for all 9 shots was 2715-2810 and they all went into a 9 shot group measuring 23.3mm.

I loaded 3x3shots of H335  with the #1510 75gr pills.
Again, this load does really well. Settled for 27.4gr max today giving av. 2974 COAL 2.343" and 3 shots went 9.8mm.

Side note on my brass. I'm using Lapua 223 match run thru the die. H2O capacity = 30.66gr.

The Federal stamped FC = 31.7 but is not as consistent.

.

  
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Re: What 6x45 loads are you guys using?
Reply #85 - Jun 28th, 2018 at 1:12pm
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Loaded up 5rnds of each of the following load in the 2 types of brass today [Laupua and FC]

27.5gr H335 #1510 projectile COAL = 60mm/2.362"
Fed match primers.

Results were pretty good with the FC winning out. Which is good cause I have 250 bits of FC brass annealed/sized/primed ready to load.

Shot both loads out to 200yards. I will say it was challenging to get a good sight picture. I used one of those 3" black dots. Had the scope of 12 power but wasn't ideal. Still, happy with the results.

FC brass shot a 5 shot 31.6mm group av fps 2929 (sd = 13.8)
Lapua brass shot a 5 shot 44.3mm group av fps 2963 (sd = 13.7)

Think I will stop these for now. I'm not going to get into neck tensions and fine tuning my loads at that end. I can use the RCBS powder thrower and be pretty confident Im going to get loads well under MOA all day long.

Next I am moving on to the 62gr Barnes Varmint grenade. They showed real promise.

I'm loving H335 powder too. Seems to be the best of the 7 I've tried so far being RL10x/H322/BM2/ADI2206H/CFE223/N133

.


  
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Re: What 6x45 loads are you guys using?
Reply #86 - Jun 28th, 2018 at 3:54pm
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As I think I have mentioned , I found H335 best for up to 75gr projectiles and after that CFE223 gave better returns before pressure signs.
Keep us posted.

Very good info here for budding 6x45 owners  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #87 - Jun 28th, 2018 at 6:43pm
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Yeah, I haven't played that much with the CFE223 yet. It looks promising.

I like how this rifle is set up i.e the reamer they used is perfect for the 75gr #1510 pill. 27.5 H335 fills the case 96%. 95% of the powder getting burned in the first 14" apparently.

Managed to smoke 2 hares this evening both at 240yds.
  
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Re: What 6x45 loads are you guys using?
Reply #88 - Jun 29th, 2018 at 3:36pm
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My 6x45 will be dusted off for an NZDA target shoot tomorrow morning. Lucky I've got a few 75gr loaded up. Myself and 2 sons using same rifle  Smiley
  
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Re: What 6x45 loads are you guys using?
Reply #89 - Jul 1st, 2018 at 12:25pm
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Mathias wrote on Jun 29th, 2018 at 3:36pm:
My 6x45 will be dusted off for an NZDA target shoot tomorrow morning. Lucky I've got a few 75gr loaded up. Myself and 2 sons using same rifle  Smiley


How'd you get on?

.

I had a play with a dozen 87gr Berger VLDs and the CFE223. I didnt crony them but QL predicts they would be clipping 2717fps. Was surprised how much powder I got in there and didn't show any real pressure signs (28.4gr load), could have gone higher than I did.

I shot them straight out to 200yds. Nothing to write home about in terms of accuracy. Not a projectile I will be playing with I just had a few lying around.

.
  
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Re: What 6x45 loads are you guys using?
Reply #90 - Jul 1st, 2018 at 5:14pm
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6x45 wrote on Jul 1st, 2018 at 12:25pm:
Mathias wrote on Jun 29th, 2018 at 3:36pm:
My 6x45 will be dusted off for an NZDA target shoot tomorrow morning. Lucky I've got a few 75gr loaded up. Myself and 2 sons using same rifle  Smiley


How'd you get on?

.

I had a play with a dozen 87gr Berger VLDs and the CFE223. I didnt crony them but QL predicts they would be clipping 2717fps. Was surprised how much powder I got in there and didn't show any real pressure signs (28.4gr load), could have gone higher than I did.

I shot them straight out to 200yds. Nothing to write home about in terms of accuracy. Not a projectile I will be playing with I just had a few lying around.

.


The rifle went really well, but the shooter was off  Grin  I need a lot more practice at the required disciplines.

We also shot some steel out to 300 with no problems (off the bipod), but 400 was not so good as I couldn't get dialed in at that distance correctly due to low sun.
Nice to use the 6x45 again.

Those VLD's are pretty long, lucky you have good throat length.

  
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Re: What 6x45 loads are you guys using?
Reply #91 - Jul 4th, 2018 at 10:31pm
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Good reading thanks for all the info, my 6x45 is on a BSA mini action which I am struggling with mag fit so I am swapping barrels around and will end up with a 6x45 on a majestic action instead. Once I finish the couple of pounds of benchmark powder I have on hand I will try cfe 223 my go to projectile is the 80gr nosler ballistic tip I find it works well on the animals I shoot.
  
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Re: What 6x45 loads are you guys using?
Reply #92 - Jul 5th, 2018 at 1:03pm
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tman645 wrote on Jul 4th, 2018 at 10:31pm:
Good reading thanks for all the info, my 6x45 is on a BSA mini action which I am struggling with mag fit so I am swapping barrels around and will end up with a 6x45 on a majestic action instead. Once I finish the couple of pounds of benchmark powder I have on hand I will try cfe 223 my go to projectile is the 80gr nosler ballistic tip I find it works well on the animals I shoot.


Good stuff  Smiley I used to have the same BSA in 222, yeah really short mag box. I looked at a mates Majestic a few years ago and they have a better mag length for the 6x45, so good luck with the change. Be keen to see how she goes for you.
  
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Re: What 6x45 loads are you guys using?
Reply #93 - Jul 5th, 2018 at 2:25pm
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Dont you love it when you stumble on a good load mucking around?

Had one of those today.

I've pretty much settled on H335 for the 75gr pills and CFE223 for the 85gr'ners.

I have around a pound of some 2206H and found 37 105gn AMAX Horndays #24562.

So I did some Quickload research and got out shooting. Loaded 3 different weights of 5 rnds. 23.5/23.8/24.1 of 2206H

COAL = 2.530" and they still stacked in the mag. Happy bout that. Pretty much on the lands.

The 5 shots @ 23.5grs of 2206H went into a hole I can really only measure at 6.5mm. (below) Yes there are 5 shots in there.



Average fps of 2451 sd=13.

The 23.8gr charge opened up a lot from there to 20.5mm. At 24.1 the group closed up again to 14.3mm BUT the sd was 5.4 and av fps 2505.

Hard to say no to that first load of 23.5 however. Think I will stretch this out to 200 tomorrow.

Interesting find on the Lapua vs Fed brass. I was finding the loaded rounds from the Lapua brass pretty hard to close the bolt on. Like really tight, thought it was the length, but no. Thought it might be where the case shoulder was but ran the FC brass through the same settings and it wasnt that either.

Turns out the neck diameter is 1/10mm bigger than the FC. I'm thinking that must be it. I can still close the bolt but I wouldnt use them hunting. Not a biggy for the range but.

I prob wont be venturing into shooting the 105's but considering the Sierra 95gr TMK which has the same BC. Can likely push that a little quicker.

.




« Last Edit: Jul 6th, 2018 at 2:35pm by 6x45 »  
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Re: What 6x45 loads are you guys using?
Reply #94 - Jul 5th, 2018 at 8:03pm
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^^ Cool Cool^^
  
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Re: What 6x45 loads are you guys using?
Reply #95 - Jul 6th, 2018 at 9:00am
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Turning out to be a nice little rifle. Hardy did a dang fine job on it. Certainly the parent 223 T3 never shot this good.

Like most rifles it has a sweet spot somewhere along the charge range but it certainly likes max loads. Only ever had one other rifle that shot its best when you really max'd out the loads and that was a Sako L461 222. Seems the more powder I can throw into the case the tighter it groups. I could probably pee in the case and go sub MOA.

If I did another one I would still get the 8" twist barrel but maybe stretch it out somewhere between 20-22". The overbarrel can certainly doesn't add much length to this rifle. Surprised the velocities I am getting out of the 18" now however and it sure is nice to carry around.

QL shows I am getting full powder burn out of the 18" using 2206H as well.
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Re: What 6x45 loads are you guys using?
Reply #96 - Jul 13th, 2018 at 10:30am
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There may be a thread here for the MAP machine, I cant find it. Should be a sticky considering it is such a mint bit of equip.

Love the smell of annealed brass in the morning.



If you are using brass stamped F.C the use program "25". "45" for Lapua.

  
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Re: What 6x45 loads are you guys using?
Reply #97 - Jul 18th, 2018 at 3:57am
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I think I might have to try a few 105gr in my Cooper, after seeing your results, I know a fellow up here in Canada, who shoots 100gr in his, he speaks highly of the results.

  
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Re: What 6x45 loads are you guys using?
Reply #98 - Jul 20th, 2018 at 11:20am
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Had a play this morning with another chrono. Not sure whether it was the new batch of annealed FC brass or the weather but I lost 100fps. Chrono is a CED M2.

Anyway, it didnt upset the grouping of my "go to" load so far, being 27,5gr of H335 and the #1510 pill seated at 60mm COAL.

Shot a five shot group after a string of 10.



Interesting thing about this Chronograph is it is showing almost exactly what Quickloads predicted i.e 2878 vs. QL 2871 fps. So I think I will stick with this one (vs. the F1 Chrony). I'd like to get the ES and SD down to smaller numbers also, may help that vertical stringing.

I need to go back to the drawing board with my Barnes 62gr pills now also.

For now, I have a load I can hunt with.  Wink
  
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Re: What 6x45 loads are you guys using?
Reply #99 - Jul 20th, 2018 at 1:03pm
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You may be able to get the ES down by working on neck tension consistency.
  
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Re: What 6x45 loads are you guys using?
Reply #100 - Jul 21st, 2018 at 11:46am
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Mathias wrote on Jul 20th, 2018 at 1:03pm:
You may be able to get the ES down by working on neck tension consistency.


It is better when I use the Lapua brass. This is just FC 5.56 brass, that stuff that has crimped primer pockets. Run through the sizer and put in the AMP machine to anneal.

The guys at AMP said the Lapua had better hardness consistency when they tested some brass for me. Not surprising really.

After annealing it is like seating the bullet in butter, so sweet.

  
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