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

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 Our shorts channel:    / @cfclipsshorts   Our podcast channel:    / @cf_podcast   Our Outside The Warehouse channel:    / @outsidethewarehouse   Instagram -   / classicfirearms   Twitter -   / classicfirearm   Rumble - https://rumble.com/user/ClassicFirearms