CMV
Member
I have a 16" barrel now. If I go to a 7.5" or 9" barrel will I need to increase my charge weight to keep same velocity? I got them to ~1050fps and would want to stay in that velocity neighborhood with the shorter barrel. No idea since this is the only 300BLK I've ever had.
Would be going from carbine gas to pistol gas, 16" to 7.5" or 9" barrel. Loads are A1680 with 240gr MBC or 220gr SMKs.
Would be going from carbine gas to pistol gas, 16" to 7.5" or 9" barrel. Loads are A1680 with 240gr MBC or 220gr SMKs.