Thread: Twist rate vs velocity vs bc

Originally Posted by veitnamcam

Cool! so in the above example bullets were seen to be staying on the line of bore presumably by shooting at cardboard/paper?

I haven't seen the targets but apparently there is a nice round hole with a wee bit out of the top made by the tip.

These bullets are extreme, they are 2.312", 58.72mm long with a BC of 1.03

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 .