i got some imr 4350 loaded 3 each 41, 42, 43, 44 87gr v-max 41 shot great the 42 and 43 open up quite a bit 44 tighten back up but not as good as the 41 went back loaded 5 of the 41 and 5 of the 44 same results after re-reading sqeeter91 post i will load some 40 gr loads the gun is rem 660 20" bl