I'm working up an antelope load for my buddy in his .325 WSM and wanted to run something by some WSM guys...
I'm using 150 gr Speer HotCor bullets and was hoping to get them up above 3350, but so far no luck without pressure issues. I've tried mostly medium speed powders so far, but that's just because that's what the books have suggested.
63.5 gr IMR 4064 at 3290
72 gr Ramshot Big Game at 3260
70.5 gr IMR 4007SSC at 3240
71.5 gr Alliant RL 17 at 3340
72 gr Hodgdon H414 at 3320
73 gr Hodgdon H414 at 3380, but too hot
Soooooooo, given that the slower powders are giving me the better velocities, should I try something more like RL 19, N160, IMR 4350, Acc 3100, H4831, etc?
I've got most of the slow powders on the market, but I'm assuming the books are suggesting that I stick with what I've done due to case capacity and bore:powder ratios. Meaning, I probably couldn't fit enough RL 19 or RL22 into the case to improve my velocity. Does that seem right?
Anyway, anybody have any suggestions or interesting loads with 150 gr bullets in this little hot rod.