I deer hunt at times with both the .257Wby and the .338WM. They are indeed polar opposites, and I do find myself carrying a 7mmRM more often when I do feel the need for something more than a 6.5CM or .308Win, which are what I carry most often.
I use the .338WM as a "thumper", since 200gr/2,900fps loads is about all I'm willing to tolerate for recoil. I even load it lower at times, as a 185 at 2,700-2,700 still makes quite an impact on critters at moderate ranges.
