In a recent thread about killing a grizzly bear with a 9mm, and all who applauded the great and wonderful feat, the debate is over. Now you can enter any forest where grizzly bears roam and feel confident and safe with a single shot 22 rifle.
http://www.ammoland.com/2014/11/what...#axzz4IuNqj0O0
For myself, I'd want something on par with the job at hand.