I had a brain fart,how about a Thompson/Center rifle or contender.I was looking at these a while a go,you could if you want get a barrel in 416 Rem(but that even scares me on the recoil side)
But just think of all the options,300 whisper,375 H&H,25-284 win(wich I've always wanted),22-250,220 swift,even toss acouple shot gun barrles in there 20ga and a 45colt/410.Boy you would be set for any safari.
BBJ