I have hunted in grizzly country my entire life. I have killed one of those and it wasn’t charging. One shot between the eyes with a 25-35.
I would never take the 25-35 as a bear gun, but as a kid, that is all I hunted with. As has been mentioned before, the chance of getting any calculated shots on a charging bear is slim. They are huge and fast. When they have determined that you are the target, you don’t have much time to change their mind.
I don’t know what you want to do in grizzly country, but unless you were there with the rifle in your hands, ready to shoot, you really don’t have much of a chance with a charging bear. I also don’t see why anyone would want to be hiking around in grizzly country, carrying a rifle for protection. Maybe a different source of entertainment would be a better choice.
We had these bears around where we were hunting elk last fall and I don’t feel very welcome in the woods with creatures like this walking around looking for something to eat…