Quote Originally Posted by handirifle
Thanks, good points. The cost of the rifle is not a big concern since its just a rebarrel of an existing receiver. Currently it wears a 338 WM barrel, but I think that might be overkill, plus its one more caliber to stock bullets for. Not doubting your efforts, but I do find it hard to believe a 308/180gr combo and a 300 WM combo end up the same at 400.
from my research the 300 will have at 600 what the 308 has at 400. The 308 can only launch a 180 at about 2600 compared to the WM's 3000:
My .308 sends 185 gr. VLD's down range at just under 2900 fps. You didn't comment on barrel length...but I've got a 30" tube. So in my case...my .308 performs very much like a .30-06...I'm certain hand loaders get higher velocities out of the 300WM.

Wayne