Twist is 1 in 9.5, velocity is 2550 fps. RPM is 193,263. It did a number on the small bodied coues wt. It had an exit as would be expected with a 300 gr bullet. The low impact at 400 yds didn't ruin any meat to speak of compared to what my 257 did with 115s running over 3600 fps.
It is the target bullet. I could switch to the hunting version when I run out.
