imr 4831 my A bolt will shoot 180 ptn , 180 accubond , and 180 ballistic tips into same group at 100 yards with 67.5 imr 4831 , wlrm primer . get slightly more velocity with RL19 and the ptns but for all around its just so easy to use same load and drop in whatever buller i want to use only variable is just slightly different coal . also shoots well with 150 ptns and 150 accubonds but not as well as with 180s .
