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Hot Topic (More than 30 Replies) T3 .223 Load development (Read 2622 times)
HeadHunter
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Re: T3 .223 Load development
Reply #30 - May 11th, 2019 at 11:56am
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Any advice on working out the OAL for these rounds?
  
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JaSa
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Re: T3 .223 Load development
Reply #31 - May 11th, 2019 at 6:43pm
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HeadHunter wrote on May 11th, 2019 at 11:56am:
Any advice on working out the OAL for these rounds?


Which rounds?
  
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Re: T3 .223 Load development
Reply #32 - May 12th, 2019 at 10:37pm
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TTSX 50grn. I plan to use 2206H powder.
  
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JaSa
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Re: T3 .223 Load development
Reply #33 - May 13th, 2019 at 6:27pm
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Started working up a new load for the 50gr as I have used up all my 55gr and found that 0.050 jump works best in my .223.
Measured 2.0085" with the O.A.L. Gauge on average for 10 projectiles and seating them now at O.A.L. 1.959". Node seems to be 25.0-25.2gr so load them with 25.1gr of H335 which gives 0.4 MOA groups at 100m. Haven't checked speed yet...
  
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Re: T3 .223 Load development
Reply #34 - May 15th, 2019 at 8:06pm
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Good stuff JASA I will be interested to hear what velocity you achieve.
  
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Re: T3 .223 Load development
Reply #35 - May 15th, 2019 at 8:58pm
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HeadHunter..sorry didnt see your post until now..... I load to mag length..... another method that works for me is grab a loaded round that groups well in your rifle,set your bullet seater using that one and try it for fit in mag then chamber..... havent had a failure with that method yet.
  
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Re: T3 .223 Load development
Reply #36 - Jun 22nd, 2019 at 8:28pm
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BC wrote on Apr 17th, 2019 at 1:04pm:
sako wrote on Apr 14th, 2019 at 11:38am:
BC wrote on Apr 1st, 2019 at 6:07am:
I couldn't get the 55 TTSX to shoot until I tried 2208 and then I was away. 3180 from a 20" barrel and little groups.

Killing wise I have found them a step up from cup & core projectiles of the same weight.


How much powder for this load? Always thought 2208 was designed for bigger boilers ...22-250 etc.


27 grains 2208 & 55 grain TTSX (223)

Is the amount of powder a typo? 27gr means the powder is up to the top of the case. How the hell can you fit a projectile in. No room. I tried the weight a few times but even with tapping the case to settle it was still too fill. Thought 25gr would be max and the projectile was firmly sitting on top of the powder. This with 55gr TSX.
  
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Re: T3 .223 Load development
Reply #37 - Jun 22nd, 2019 at 9:51pm
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sako wrote on Jun 22nd, 2019 at 8:28pm:
BC wrote on Apr 17th, 2019 at 1:04pm:
sako wrote on Apr 14th, 2019 at 11:38am:
BC wrote on Apr 1st, 2019 at 6:07am:
I couldn't get the 55 TTSX to shoot until I tried 2208 and then I was away. 3180 from a 20" barrel and little groups.

Killing wise I have found them a step up from cup & core projectiles of the same weight.


How much powder for this load? Always thought 2208 was designed for bigger boilers ...22-250 etc.


27 grains 2208 & 55 grain TTSX (223)

Is the amount of powder a typo? 27gr means the powder is up to the top of the case. How the hell can you fit a projectile in. No room. I tried the weight a few times but even with tapping the case to settle it was still too fill. Thought 25gr would be max and the projectile was firmly sitting on top of the powder. This with 55gr TSX.


Me too, 25 gr was as much as I used before the powder became compressed.
  

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JaSa
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Re: T3 .223 Load development
Reply #38 - Jun 22nd, 2019 at 10:28pm
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samiam wrote on May 15th, 2019 at 8:06pm:
Good stuff JASA I will be interested to hear what velocity you achieve.


Getting 2966fps out of this load with extreme spread of 14fps and SD of 5fps. That is out of a 14" barrel with DPT can on.
  
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