Shorter twist is better for heavier rounds? I'm trying to decide which to get for my SBR because I'll be firing sub-sonic ammo through it with my silencer, but probably 197 the rest of the time.acmeraptor said:wikipedia lists the P90 as having a 1:9, which is what i purchased from cmmg for my sbr.
i also got the 1:7 they have for heavier rounds once my can comes in
Yes, the faster twist is better for heavier boolits. The only drawback is a faster twist will result in less de-stabilization down range. If you are only shooting paper and not living targets, 1/7 probably wont be an issue.FSCJedi said:Shorter twist is better for heavier rounds? I'm trying to decide which to get for my SBR because I'll be firing sub-sonic ammo through it with my silencer, but probably 197 the rest of the time.acmeraptor said:wikipedia lists the P90 as having a 1:9, which is what i purchased from cmmg for my sbr.
i also got the 1:7 they have for heavier rounds once my can comes in
I plan on shooting some living targets, such as varmints, etc...gregg877 said:Yes, the faster twist is better for heavier boolits. The only drawback is a faster twist will result in less de-stabilization down range. If you are only shooting paper and not living targets, 1/7 probably wont be an issue.FSCJedi said:Shorter twist is better for heavier rounds? I'm trying to decide which to get for my SBR because I'll be firing sub-sonic ammo through it with my silencer, but probably 197 the rest of the time.acmeraptor said:wikipedia lists the P90 as having a 1:9, which is what i purchased from cmmg for my sbr.
i also got the 1:7 they have for heavier rounds once my can comes in
Gregg