458 Win Mag gets my attention if I don't snuggle up close
and tight. Not a particularly pleasant experience.
The 375 H&H is quite a bit down the line of 'bruisers',
but when loaded to the max with 300-grs can rattle me some.
Generally load those 300-gr bullets to 2400 fps for a more
harmonious relationship. Can easily digest 20 rds or so at
the range before my shoulder wants to break for lunch.

The key to what you're asking really isn't so much the size of
the cartridge as it is the design of the stock. I once owned
a 300 WM that abused me regularly until I had it restocked.
Another 300 WM I owned recoiled like a 30-06.

Last edited by travelr47; 02/18/09.