Dave;
I'm not sure what you have as a companion to the big bore your are shopping for, other than the 7.82 laser beam!
As your planning for this gun think about the obvious choices of 375, 416, and 458 or larger.... To me if you want just one big bore it comes down to these three...
If you go all the way to 458 (or bigger), you are giving up a lot on trajectory and paying a lot in recoil. And possibly weight of the gun you will be carrying. You can of course shoot a steenbuck with a 458... But it is really best suited for buffalo, elephant, hippo on land (NOT in water), and rhino.... And fine for lion at short range. Don't know what else it would be considered a first choice for. However if you will normally take two rifles anyway, it might be good... Have a flatter shooter as well as a bigger caliber. And if you want a BIG bore... Go for it! But if you get a 458, you should get a Lott of 458! LOL
If you want
the best all around caliber for
everything in Africa, it has to be a 375... You may not
need a 375, (although everyone
should have one! LOL) I can think of no better caliber for leopard than a 375, and I had a wide choice for lion but chose my M70 375 because I am more comfortable with that gun than any other I have. And I figured it was plenty if the bullet was placed in a decent spot...
Enter the 416's! Great choice if you want something more practical and flatter shooting than a 458 but considerably harder hitting than a 375... Your basically moving up 20-25% on foot pounds of energy over a 375. And it actually calculates out to more energy than a 458 Win Mag! The 375 "may" be light for elephant but I consider the 416's to be about perfect.
For cats or anything in water, I want my most accurate gun in a legal caliber, thus very likely a 375. (I have actually not shot my 375 RSM yet
For buffalo, I want the hard hitter!
For elephant, I want a 416 minimum but also want to take a lighter weight gun, so I can walk farther
And then will you ever go after a big bear? I would take something with better trajectory than a 458. I plan to use a 375 but a 416 might be fine as well.