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AR Hunting, Preparedness and Survival
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Marko/IL

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Reply with quote  #1 
The Firearm Blog TFB.com has an article on the USMC getting closer to to adopting the M855A1 cartridge. Interesting is the penetration graph. Note how longer barrels have better penetration. Not unexpected. You sacrifice higher velocity, longer range for the handiness of a carbine length rifle.
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