The problem is a big gun will do 99% of everything a small gun will but a small gun will only handle about half of what a big bore will, depending on the exact cartridge of course. My smallest in a revolver would be a 44 Mag, Semi Auto would be my R1 1911 in 460 Rowland because it will also cycle 45acp without a hiccup. In single shots it would be a 375 or 338JDJ in a Contender and in the Encore It would be a minimum of a 270 or 280 but probably a 300Win mag as I've had excellent performance with it on paper and on animals. With a 180gr bullet it's a hammer and hits as hard as a heavy 06 rifle load or lighter 300 load.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist