49.5 grains H4350 with a 120 grain Sierra bullet and 3.000" COL gives me a measured 59.4 KPSI and 3075 FPS out of a 24" barrel. I back that one down a grain just for luck. Should give you about 3025 and around 57 KPSI, which is a conservative load for a modern rifle.
47.5 grains H4350 behind a 129 grain Hornady bullet, 3.000" COL, gives 2951 FPS. I don't have a pressure measurement on that. Same 24" barrel.
With a Swedish milsurp, 46.5 grains RL22 gives 2824 FPS at 3.025" COL, with a 140 grain bullet, and 44 grains AA4350 gives 2793 FPS. Those are mild loads according to the books.
Your results will be different, of course.
Last edited by denton; 12/27/14.
