I vote for some big magnum, but of the two I like the 357M best. 45acp was designed for people and is good with people sized animals, but not sure about the thick hides and the thick skulls of bigger animals.
Somewhere I saw a video of a guy that got lucky with 'only' a 44magnum and a huge Grizzly. He hit the bear right in the heart with the first shot.
Enjoying my XD .45ACP Tactical. need to break in my 870, and my wife's XDSC9.
I carry my XD45 ACP Tactical, in a SuperTuck from CB. Very comfortable, easy to hide, easy to draw, and easy to reholster.
Looking for an HDR*, either an AR-180B, or Kel-Tec FBR.
HDR, Homeland Defense Rifle