Timberbeast7
Well-Known Member
I'm going to have a 7mm WSM built for long range hunting and need advice on barrel twist rate. I plan on shooting 160 AB's, or 162 a-max but would like the option to go up to 180 bergers. Would a 1:9" twist work for both? (Berger recommends 1:9" for 180 gr. and 1:10" for 168 gr. whereas most of the barrel manufacturers recommend 1:9" for anything over 140 gr.) Any ideas? Thanks