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Hot Topic (More than 30 Replies) 7mm-08 projectiles for out to 500 yards (Read 14370 times)
Good keen bloke
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Re: 7mm-08 projectiles for out to 500 yards
Reply #30 - May 14th, 2016 at 10:09pm
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CE wrote on Nov 16th, 2015 at 5:03am:
I have not used the SST's but I doubt the 8 grain difference between them and the 162 amax  is going to make any significant difference to the amount of recoil she experiences.

I use the 162 amax exclusively in my two 7mm08s.  I can achieve muzzle velocities of up to 2700 in one and 2730 in the other although I have recently backed off my loads in both to achieve a low pressure 2630 fps.  If you run this through your ballistic program you wil see that this is a very handy mv with a high bc projectile like the 162 amax.  The great thing is that at the low velocities generated by the 7mm08 the amax will not blow up on the shoulder and still has plenty of energy at 800 yards.

I have taken reds, chamois and thar with mine without difficulty.

The recoil is mild.

If you want to shoot at longer ranges high BC is where it is at.


Spot on!!
I too use 162gr Amax's & think they are the perfect 7mm 08 bullet to do it all in nz.
  

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Good keen bloke
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Re: 7mm-08 projectiles for out to 500 yards
Reply #31 - May 14th, 2016 at 10:20pm
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SBrown wrote on Mar 22nd, 2016 at 7:49pm:
Jesus, what am I doing wrong?! I shoot with a Sako A7 19inch barrel and gunworks supressor.
This is my data from my loads.

Factory
140gr Corelokts average 2670fps
Hornady 139gr SST Superformance 2830FPS

Hand loads

139gr SST 43.5gr 2208 2763FPS .3MOA

140gr VLD 42gr 2208 2695 FPS .9MOA

140gr Ballistic Tip 42gr 2208 2710FPS 3" group

140gr Accubond 42gr 2208 2750FPS 2" group

162gr Amax 42gr 2208 2140FPS .5moa 3 shot group
162gr Amax 44gr 2208 2200FPS

Anyone got any ideas as to why the 162 is so ridiculously slow compared to everyone elses?


I'd try a different chronograph cos that doesn't sound anywhere near right!
  

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Re: 7mm-08 projectiles for out to 500 yards
Reply #32 - Oct 26th, 2016 at 1:02pm
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SBrown wrote on Mar 22nd, 2016 at 7:49pm:
Jesus, what am I doing wrong?! I shoot with a Sako A7 19inch barrel and gunworks supressor.
This is my data from my loads.

Factory
140gr Corelokts average 2670fps
Hornady 139gr SST Superformance 2830FPS

Hand loads

139gr SST 43.5gr 2208 2763FPS .3MOA

140gr VLD 42gr 2208 2695 FPS .9MOA

140gr Ballistic Tip 42gr 2208 2710FPS 3" group

140gr Accubond 42gr 2208 2750FPS 2" group

162gr Amax 42gr 2208 2140FPS .5moa 3 shot group
162gr Amax 44gr 2208 2200FPS

Anyone got any ideas as to why the 162 is so ridiculously slow compared to everyone elses?


I've just choronographed my loads at 1100m altitude in my tikka 708 19" barrel Gunworks suppressor using 162gr amax bullets 41gr of ar2208 & bullets seated 1.5mm off lands. Results are 2572 fps average. Yours should be similar?
My 3 shot groups at 100y are all under .5" with best group .25" (bullet holes all touching) since seating out near lands.  Cheesy
  

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Re: 7mm-08 projectiles for out to 500 yards
Reply #33 - Oct 26th, 2016 at 2:36pm
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jonesy45 wrote on May 5th, 2016 at 10:30pm:
Yeah 51gr of 2209 is pushing it. But just gradually building up to it and checking my cases,  primers and all the other little things were fine wasn't a problem.  I never had any problems with bolt as well.  Ive just done another load since I have put a dpt surpresser on it and had the barrel cut down by 2". That load is 48 gr of 2208 with Nosler 140 bts. They are doing 3020 fps and are shooting consistent 60mm groups at 400 yards. No bolt problems or any other problems with that.  I went up half a grain to see what that would do but started getting problems so stayed with 48gr.


Have you verified those speeds with a drop chart or another chrono. They don't sound right?
  

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Re: 7mm-08 projectiles for out to 500 yards
Reply #34 - Oct 26th, 2016 at 5:12pm
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Just a general observation... rifles vary.. I have one 708 that I load 48gr of 2208 behind a Nosler 120BT and another that maxs out at 46gr.

The critical factor is identification of pressure signs.  Once any of those are reached at average temps (not too cold) then it is good practice to back off 1.5-2grains and call that max for your rifle.  Then do your load development for accuracy.  This gives you a safety margin for altitude and temperature as well as providing some brass longeivity.

51gr 2209 behind 140s does sound excessive, but it may not be for that particular rifle.  That figure however would suggest that a review of the speed and all other indicators should be double checked.  And I would increase your safety margin from 0.5gr to at least 1.5grains...
  

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Re: 7mm-08 projectiles for out to 500 yards
Reply #35 - Dec 21st, 2016 at 2:26pm
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Hey, i am 15 years old, i have a thomson/center dimension in 708 and i reload for it, i use 120gr TTSX, 50.0gr of WIN 760 and that pushes them at 3025fps
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #36 - Dec 22nd, 2016 at 8:54am
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Im a bit out of step. I use 120 grn Nosler BT out of an 18" barrel @ 3k. They are devastating out to the 500 yards I've used them.


  

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Re: 7mm-08 projectiles for out to 500 yards
Reply #37 - Dec 25th, 2016 at 9:16pm
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I like the 120 bts too. 2800 fps out of a 16 inch barrel. Shot a few reds with this load and as good as anything I've tried.
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #38 - Jan 3rd, 2017 at 9:50pm
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Nosler 140 BTs all day long. Nothing you can't knock down with them out to 500 yards. If you want something heavier try the new 162 EDL-X projectiles from hornady. I'm doing a load for them at the moment for something to do and they are going alright.
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #39 - Apr 19th, 2017 at 3:13pm
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Try the 162 eld match or X guys. Great bc and awesome performance at 7mm velocity.
http://blackwatchreloading.co.nz/
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #40 - Jul 11th, 2017 at 7:26pm
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I use #2826 Hornady 150gr ELD X with 42.5gr of 2208 in a 20" barrel seems to shoot out to 600 yards no worries out of my tikka.
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #41 - Jul 17th, 2017 at 12:33pm
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7mm08Tikka wrote on Jul 11th, 2017 at 7:26pm:
I use #2826 Hornady 150gr ELD X with 42.5gr of 2208 in a 20" barrel seems to shoot out to 600 yards no worries out of my tikka.

I second the 150Gr ELD-X
I worked up a load and test fired on the weekend and got a nice sub 1/2moa 4 shot group ant 100m. I think this projectile is just the right balance of good Bc and weight for the 7mm08 with 162gr beng the max weight I would use as too much powder space is taken up by the long bullets.
If you want to work up a load for the 150 ELD-X try ADI-2208 I used the 154gr data from the ADI book and worked up from 5% below max in 1% steps and found my best group just below max.
  
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Re: 7mm-08 projectiles for out to 500 yards
Reply #42 - Jul 18th, 2017 at 4:23pm
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eld - x 150gr. I'm not a long range shooter or anything. I just took the 7mm08 down to the 200m range and got a 1.5 inch 3 shot group at 200m so i would say that they would perform well out past 200m most definitely. That was out of a T3 i belive they are doing 2770fps
  

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