Hey guys ... I'm building a 300 PRC. I am planning to shoot heavier bullets . . . 225 ELDM and 230 A-Tip. I'm punching metal at LR . . . not planning to hunt with it . . . unless I do. Anyway, any of you have experience with a twist rate you love or hate? I'm leaning toward 1:9" btw. I'm basing it off of Bryan Litz's book and references to stability factors. 1:10" seems to be too low. I'm concerned that 1:8" will be too much. So, just looking for some experience here. Please share. Thanks!