I remember the day when the 357 Magnum was the most powerful handgun on earth and many of us carried it for years daily for protection. It and lesser calibers seemed to work when we were a mostly rural society and I believe it will still protect you nicely. The main problem is learning to hit something scooting at you low and fast. I carry a SIG P220 in 45 ACP loaded with 230 grain FMJs and shoot it well.
‪Shoot the charging bear‬‏ - YouTube