I have never been a magnum head, but several guys I know love
them. Most of them tell me that the recoil of a 338WM is more
tolerable than a 300 Win or Wby. Most of these guys own older
Ruger M77s.
I hear that a lot too. I've had both and they are so damn comparable it isn't even funny. I generally shoot 200's out of the 300 win mag and 250's out of the 338 though.