The bear I shot yesterday had a fist sized hole through his shoulder, right through his heart and he ran 50 yards. Keep looking, you never know. Also watch for magpies (if you got 'em around), crows etc. But big game animals are remarkably resilient. If the bear wasn't hit quite right, he might well survive.
A .30-30 should do the trick, if the shot placement is right, but maybe this is the excuse you need to convince the wife you need another bigger caliber, eh?
Good luck.



























