I used to carry a Ruger Blackhawk in 41 Mag when I was packing out elk and mulies in bear country. I never shot a bear with that pistol but did take a couple of cow elk and mulies with it shooting the Rem factory load with a 210 gr bullet. Based on how it handled the elk I'd say it would be good for bear. More punch than a 357 Mag but easier to control than a 44 Mag. I'd also think that a revolver in 45 Long Colt would be good on bear.