So far i have achieved my best groups with my AWSM 338 using RL22 and SMK 250gr ..2.5" to 3.5" @ 1200yds. http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1867687 I have tried other powders , Ar2213C,Ar2217, Ar2225, N170 . Groups with a couple of these powders have been down...