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7.62x39 Velocity From Various Barrel Lengths


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Very interesting! I've been using slow stuff too. I don't know how much difference as 5% decrease in velocity would do in terms of the 7.62x39mm round, but it looks like good data. How many shots did you take with each ammo/rifle combination?

 

I see Golden Tiger is both fastest overall and it looks like it had the least variability. Looks like a winner!

Edited by DrThunder88
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Anything on the RPK 23" barrel?

I don't know how much difference as 5% decrease in velocity would do in terms of the 7.62x39mm round, but it looks like good data. How many shots did you take with each ammo/rifle combination?

Not my data/chart.

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I wonder what the differences are? They're similar in grain bullet case And bullet shape, why does one or the other have more velocity?

 

Could have more powder, some rounds are loaded hotter that others.

I thought the grain was the amount of powder? Well more powder would explain it

 

Thanks stnls1911

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