* Apologies to the OP, I have gotten off topic. Of the cartridges listed, The 505 Gibbs has its impressive size, the 300 H&H is sexy as a super model, but the 375 H&H is the winner for popularity through the ages. Used in every corner of the world, it's name still carries credentials the 375 Ruger, Weatherby ect will never match.

I have never owned one, but I would love to have a 404 Jeffery. A bit bigger bullet than the 416, and without the stupid belt of the H&H cases. It can also be shoehorned into a less massive action, and handier rifle than the 505 Gibbs requires. Sounds about perfect to me.

Wyatt