Many years ago, I used to own a Colt 1911 pistol, that I used for target shooting.
It was not placarded 'do not shoot brown bears with this gun', but for some reason I never tried to (perhaps the lack of grizzlies in the UK had something to do with it.)
So Pilot DAR, do you think it is a good idea to go out and find a grizzly to shoot with a .45 handgun?