bigngreen
Well-Known Member
The 40-65 generally shoots a 1-16 twist and I'm using a 1-14.5 that would be standard for a 40-82. I can get the long range style bullets stabalized out for long range and the newer bullet designs need a little more twist.
I believe the standard for the 45 cals is 1-18.
The faster you drive the bullets you can get away with slower twists farther but in a 1-16 the 40-65 will destabalize with a few bullets at 1000yrds. Remember all these bullets go sub sonic earlier so there are bullet that work better in the transonic region and some that get stablized better.
I believe the standard for the 45 cals is 1-18.
The faster you drive the bullets you can get away with slower twists farther but in a 1-16 the 40-65 will destabalize with a few bullets at 1000yrds. Remember all these bullets go sub sonic earlier so there are bullet that work better in the transonic region and some that get stablized better.