I have a .338 Winchester Magnum that I'll be using for an Alaska moose hunt. I'll be using 250 grain Buffalo Bore rounds. I'm confident that as long as I do my part, (place the round in the kill zone), this set-up will be fine for moose. I'd like to know if anyone has used a .338 Winchester to hunt / stop a brown bear charge and how if performed. Is this enough gun for this purpose?