RE: which 300?
Just ordered a 300WM mainly because it was a great value(Savage 112 FSAK = $310). The 300WSM, 300 WM and 30-06 are very close. The advantage does go to the 300WM if you reload with a quality 200 gr bullet and max powder. It then will make 338 WM power that the others just can't do because of reduced powder capacity. I have shot a 300UM and it as a lot of recoil and muzzle blast for the end result. Great ballistics but not worth the extra BANG! in my opinion.