Thankyou everyone for your replies. My planned bear hunt is still a year or two away but for me the planning is half the fun - asked this question as am planning a 'bigger' calibre addition to my gunsafe (than my 7mm-08 anyway) but since we have just bought a house I wanted to make sure it will do for my hunts in the foreseeable future - I reckon that with my 7mm-08 Kimber and a .300 or .338 I should be quite well covered - I'd like to hunt Gemsbok in Namibia and sheep and Bear in Alaska.
With similar rifles (weight and fit), what do you think the perceived recoil comparison would be between a .338 Win and .300 win or .300 weatherby? I'm reasonably slight of build but not overly recoil sensitive.