I don't trust 9mm for home defense either. It's just not enough punch to stop momentum on a large target. I carry a .357, and I wouldn't bet that's enough on a bear.
Anyway, I guess it's not really on topic.
I carry a Ruger Redhawk chambered in .475 Linebaugh when I'm in the woods. Properly placed, that round can stop a charging rinoceros.