Re: 300wsm comparison to 7mmwsm
If you like the 7mm 175gr MK, try the 162gr Amax and I bet they put a smile on your face. I have two 7RM launching them now and LR performance is very satisfying. Should work quite well on game too.
Based on my drop table, elevation and wind drift should be better too.
Until you get way up there in bullet weight, the 7mm just walks on the 30cal. When you get to those 30cal heavies, the WSM case is too small. So if you want 'small case' LR performance, the 6.5 and 7mm are tops. At least until more 6mm and 25cal bullets come out.