I think that a lot of us stress about small things too much. All the minute details. This is natural as instead of just grabbing the nearest rifle at hand for the daily chores we go on safaris of our lifetimes or if we are lucky the annual or bi-annual safari.

For example my Whitworth is not the perfectly slick Mauser 98 that is a "must" for buffalo hunting as some demand. I have had jams antelope hunting, when not positivey chambering a cartridge. But when buffalo hunting it always was "positively" rammed home. One of these days I will have to leave it with a gunsmith to be worked on.

All things equal, rimmed is better than rimless, no doubt. A.375 H&H Flanged is a better choice than the belted version in a double.