Moose are the largest animals that I hunt. For these I find the .338 WM to be more positive than lighter calibres. To be honest my rifle has a muzzle brake which I know many hate. With it bench shooting is no problem. With the brake off I only ever fired two shots before putting the brake back on. The OP might want to keep this in mind if he plans to do much practice shooting with whatever his choice happens to be.
Jim
