Thread: Twist rate vs velocity vs bc

Also if you look at some of the most accurate cartridges in the North American Benchrest circuit, the 6 mmbr and dashers perform pretty well from 600 to 1000yrds. They are not shot at crazy velocities , but the twist is often 1 in 8" for those above 100 grainers pills typically used. So the deformation of the jacket theories does not seem to apply here. The early 7 mm 162 grain a-max were notorious for vaporising from time to time in fast twist and fast speed cartridges. I believe hornady has sorted out the problem since .