You may want to look into a 338-06 if its going to be a light rifle. The recoil isnt bad but it is still devastating down range, and due to the good BC and SD of the 338 bullets offered you may find the energy delivered within 500 yards to be more than suficient.

I just sold my light weight .300 wby because it was just not fun to shoot, then I added a muzzle brake and it was even less fun to shoot because then it hurt my ears instead of my shoulder.