There is a group on FB that i follow The Night Vision, Thermal & Predator Hunting Group
Bruce Nolan host this Group these guys talk about thermals like Long Range Hunting talk about barrel twist
After a little research on some of the above suggestion 1:8 would win. I will do more research on the heaver Berger bullets.
My son and i played hell trying to get the 168ABLR to group at 100yd but found much better results at 200-500 hoping a tighter twist and 28" barrel will help
any...