Our family homestead, and base camp of our exclusive hunting areas ,is centrally located it what AK F&G considers one of the densest populations of Brown bears in the world. And have been guiding brown bear hunters, and killing wounded bears for 43 years, I will say that NO handgun makes an good weapon for stopping wounded bears !
I have zero experience hunting bears of any type. I will say that the two grizzly bears I saw in the San Diego zoo a few years ago intimidated the crap out of me. Made it seem that no gun I had was big enough. Granted I have hunted SA with a .458 Lott and .35 Whelen, but it was something about the bears that messed with my head.
