.454 Casull, .480 Ruger, .475 Linebaugh, .460 S&W and .500 S&W is what you need when dealing with large Grizzlies. (a 44 will worThey are very heavily muscled and have lots of fat which makes smaller caliber guns less effective because the tissue absorbs the round.
You also need a gun that you are willing to actually carry day in and day out.
That 500 mag won’t do you any good if you left it in the truck.
“a 44 will worThey “
Beg to differ. Speer makes the 270 DeepCurl for the specific purpose of a 44mag being used against bears.
Yes I would not trust less than a .44 magnum on bears.