Also worth noting, a buddy that hunted polar bear years ago, said the inuit carried 222 as bear back up guns. basically was all they could get for some reason, but that was the back up gun to his bow!
I read a story about them hunting from elevated stands with a .22 Hornet with a stick tied to the barrel. (For some reason the bear wouldn't be visible, I don't remember the details of why.) When a bear would come along, they'd poke it with the stick and pull the trigger. Wait several hours, then go track the bear.
