Advantage of the d. rifle on dangerous game, I would think, as I have never hunted any dangerous game other than big wild hogs, is an immediate second shot. I'd rather carry a d. rifle all day, than a bolt gun, but few professionals or hunters carry their gun all day anyway.
Advantages of a bolt gun are much lower price, added capacity and accuracy. If I ever got to the Dark Continent I would most likely, out of necessity, be carrying a bolt gun. Although, I will admit to having spent a considerable amount of time loading the .45-70 round to it's extremes in a Ruger #1, with 500 grain bullets. It can be safely loaded to within 300 fps, or a little less, of what the .458 Winchester Magnum does with factory ammo. Shooting them out of a Ruger #1 on the bench is not for the fainthearted, but is rather fun offhand. You just let yourself rock back with the recoil. One can also get very quick at reloading a #1 by holding extra rounds between the fingers, as it ejects the empties quite well. Big double rifles can be fascinating pieces of handiwork, tho'.
SRH
What you need is Artemida .45-70. It is good handling gun in that particular caliber. Put nice new recoil pad on it and you will be ready to go. Great value for <$1000. If you don't like it there will be plenty of takers not so for stuff costing thousands of dollars especially when Hecho en France. I realize w/o the French we would not have a county, but many hombres don't seem to appreciate or realize this. If I see another MP-221 .45-70 locally I will probably buy it. It goes very, very well with Wrangler's, rubber galoshes, camo jacket,.....
The expensive double rifles are true money pit. If you buy one next thing you will want them expensive leather cartridge wallets, hunting knife for several hundred (when Buck Woodsman Hecho en Los Estados Unidos available at Walmart is all one needs) fancy smancy Selous boots from England along with safari jacket and hat costing hundreds of dollars. It ain't worth it.
