To date the largest big game I have killed with a revolver is four bull elk: two with my .454 Casull and two with my .475 L. Either will suffice; however my favorite is the bigger caliber.

This bull I wanted to drop on the spot with no chance to run off so I put the .475 bullet through the center of his shoulder and it worked fine. I vote for my .475 Linebaugh. Although I am sure the .454 would have done just as well.