No one has mentioned it, but one of my main concerns when I actually took this battery to Africa was availability of ammunition. The prospect of guns arriving without ammunition was not then out of the question, and I assume it is still so.

I thought the first three mentioned had the best prospects for ammunition availability at the time. I suspect that the 7mm Remington Magnum or the .300 Winchester Magnum have eclipsed the .300 H&H by this time (more's the pity) and either one would be just as satisfactory.

Also, since my Krieghoff Teck .458 has interchangeable barrels in .375 H&H, I suppose I could in good concience count that as only one gun, and if I included my Mauser 66 in 8X68S with its interchangeable barrel in 7mm vom Hofe, then I would need only two rifles, so I could throw in a .223 for the really small stuff. However, that would defeat my purpose as far as availability of emergency ammunition was concerned.