How Much Does Barrel Length Affect .300 Blackout Bullet Velocity?

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0:00 Testing Parameters
3:28 5.5” Barrel w/ 110GR & 200GR
5:30 8” Barrel w/ 110GR & 200GR
6:35 9” Barrel w/ 110GR & 200GR
8:37 10” Barrel w/ 110GR & 200GR
9:30 12” Barrel w/ 110GR & 200GR
10:41 16” Barrel w/ 110GR & 200GR
12:55 5.5” Barrel w/ 125GR & 145GR
14:28 8” Barrel w/ 125GR & 145GR
15:32 9” Barrel w/ 125GR & 145GR
16:51 10” Barrel w/ 125GR & 145GR
18:04 12” Barrel w/ 125GR & 145GR
19:21 16” Barrel w/ 125GR & 145GR
21:29 Final Results

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