- Joined
- Mar 13, 2020
- Messages
- 6,881
- Reaction score
- 18,951
- Location
- On the Border in Idaho looking at BC
friction? after the power peak.Interesting, I know in a 357 magnum a 16" carbine lever gun produces slightly more velocity than a 20" rifle. It hits that maximum length for velocity then the longer barrel begins the slow the bullet. Same with 9mm in 12" barrel vs. 16" barrel.