I spend most of my summers in the outdoors close to YNP and Grand Teton National Park. And all fall hunting in Mr. Griz's habitat. You can't carry firearms in parks and I spend some time in them. (Not hunting
) So I trust my life with bear spray. I have seen griz in YNP and Glacier while out and about and seen plenty of black bears other times. I have also had encounters with them while hunting in the Bridger Teton Wilderness in WY. I have realized a few things.
Say you are carrying a shotgun. Mr. Bear jumps out in front of you and charges from 100 yards away. You probably aren't going Mr. Swat guy in the wilderness which means you have to unsling the shotgun, take the safety off and place a well aimed shot into the bear, hitting its CNS. FAT CHANCE.
Same goes with a .44, .460 or .500. That is a TON OF WEIGHT TO CARRY. You will carry it for one day and say this is BS, and stop carrying it. Even if you do have an Airlite .44 mag, you still have to unholster it and fire, and hit Mr. Bears CNS. Thats funny, I would like to see someone try.
Bear spray you have to remove the safety tab and fire. It can be done from the belt!!!
Oh, and one little thing. If you shoot a Griz in the lower 48 you are going to have a nice time proving that it was actually a real charge and not a false charge, which griz like to do to get you shook up.
Bear spray works on other animals besides bears too. I have a good buddy who was being chased by a Moose and he gave it a dose of Bear Spray. The moose was messed up and he got out of there. I have had more problems with moose and lions in the backcountry than any other animals. Bears don't worry me enough to have to shoot everyone. Or at least think like I do.
I carry both bear spray and a .44. I always hope the bear spray works. I pray to god if it doesn't the .44 saves my ass.
My first choice will always be the spray though.