I've used the 30-30, 30-06, and 450 Marlin on them. They all worked. I was more impressed with the results with each step up in power. If I get drawn again, and I still do apply, I will use at least a 30-06.
I've shot a couple moose with a 375 magnum. Both were shot in the lungs and did not react to the shot in any way. Moose will just stand there and die unless you hit them in the front shoulder or CNS and then it becomes a bit more dramatic. A bigger cartridge won't always make a difference.
