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Anybody use AR comp for 223 and 308win?  Thinking of giving it a try just wondering how well it did and how well it meters.

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I love it in .308, but I don't get the velocities I want in .223/5.56 before I blow primers. 

 

I load a 150gr Barnes TTSX to 2900fps in a friend's .308 Savage rifle - 100fps faster than factory Barnes - with no pressure signs. 

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What about with a heavy bullet my 308 likes 168 grain? So far I have only loaded 55 grain bullets in 223 but I have seen some good deals on 62 grain bullets. In 223 I have been using mostly CFE 223. I also like Win748 and H335. Just looking to expand my powder choices.

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His rifle also shot incredibly well with AR Comp and 175gr RDF bullets.   I think I just threw some together at Alliants max charge of 41.4 for a 175 Sierra just to break the gun in and it was sub 3" at 300 yards. 

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Posted (edited)

Here are some of my .308 bullets arranged by weight to show how long the TTSX is. 

 

150gr Hornady Interlock, 150gr Barnes TTSX, 168gr SMK, 168gr A-MAX, and 175gr RDF. 

1013181317-1040x585.jpg

Edited by chevrofreak

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Posted (edited)

How well dose it meter? RL 15 seems to meter well thru my hornady progressive press.

Edited by Swiley383

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6 minutes ago, Swiley383 said:

How well dose it meter? RL 15 seems to meter well thru my hornady progressive press.

I have only used it through my Dillon 650 for doing .224/5.56 and it did OK.   My velocities were pretty consistent despite mixed brass and being loaded on a progressive.   I was loading the RMR 69GR 3GH with 22.5gr which was disappointingly popping primers in my Bergara .223 Wylde chamber, but not in any of my 5.56mm chambers. 

 

Max velocity: 2976fps

Min velocity: 2916fps

Avg velocity: 2950fps

34 shots

 

That barrel will throw CBC 77gr SMK MK262 clone ammo at 2958fps average with no blown primers.     Just dont expect top velocity with the AR Comp.  It also produces less gas than many other powders. Shooting suppressed with my 24" Bergara barreled AR with a rifle length gas system using an Adams Arms piston system, I have to run it on the unsuppressed setting, but all other powders will run on the lower gas suppressed setting. 

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