If you are hunting wth dogs and the shots are close, any caliber .45 acp and above will do. I shot one at point blank range with a Smith&Wesson model 625 loaded with Hornady's 200 grain XTP bullets loaded in .45 acp csses and moon clips. The bullet traveled diagonally through twelve inches of neck taking out three inches of neck bone on its way to lodging behind the jaw bone on the opposite side.
If my shots were going to be fifty to 100 yards I would use a .45 colt or a .44 magnum.
Clifford L. Hughes