No, smart Alaskans carry a Glock 20. 16 rounds before you have to reload is much more comforting than six rounds. And switching out magazines takes a second. You'll never reload a .357 before the bear gets you if he's still mobile. Same applies when up against two legged predators. Anyone who carries a revolver as their primary sidearm is flirting with death.
I talked to a resident of the 49th State, who refuses to carry a semiauto rifle or shotgun for bear protection, because semiautos are (in his opinion) less reliable than other action types. Alaskans with the same or similar priorities/experience likely carry revolvers rather than Glocks...