Six percent of people think they can beat a grizzly bear

Bears are very slow bleeders .They can still attack and kill after suffering a mortal wound. Unless you hit them with a spine o brain shot. That's not easy to do as the article stated above.
It may change his mind about continuing the charge though. And if he's headed at me, his face and chest are going to catch the bullets. I don't ever plan to put any of this into practice, mind you, I'm not an idiot! But, if I had to put myself in that position, give me my Glock before a spray that lasts about 7 seconds and shoots at an arc that you have to account for, all while he is running full bore at me. I've used both, and I promise you I'm much more accurate with a handgun.