Foreign Weapons and Obscure Builds V3

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Nov 17, 2015
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You lose 83fps dropping from 16 to 12.5 and lose almost no accuracy. Seems like an easy choice to me. Anything above 16 and you only gain about 70fps.

Science.
Yes, the 7.62x39 has a much lower reduction in velocity when going short barrel Than most other calibers. That‘s what makes it so awesome.
Even down to 1300fps it’s damn effective (tried this out in my Micro Draco with 154gr Tula years ago on steel and hogs)
 

oio

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Nov 17, 2015
1,686
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Alpharetta
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I think this is what it is, but there is a lot less velocity loss coming out of a 12.25" barrel compared to 5.56x45
Definitely. The only oddball short barrel 5.56 I’ve tested that got pretty good velocity is the cheap KelTec PLR16, which still managed around 2650fps with 62gr and over 2700fps with 55gr. Impressive for a 9” 5.56