I have 3 doubles, a 9,3x74R, a 450/400 3 1/4" and a 450 No2.
I hunt with them quite a lot. I have taken game from turkeys, bobcat, deer, wild pigs, caribou, black bear, impala, civet cat, side striped jackel, baboon, kudu, waterbuck,klipspringer, buffalo, and elephant.
Doubles are my favorite hunting rifles. I could easily use doubles for all of my hunting.