Originally Posted by sandpit
thinking about a new 1/9 or 1/8 twist. older savage 110
.
If you're wanting to shoot 55's then it's 1/12
For 80's the 22 Creedmoor crowd likes 1/8

The formula is to stay under 300,000 RPM
MV x 720 ÷ Twist = Bullet RPM

B L M - Bureau of Land Management