Yes indeed. Here, for those lucky enough to get the carry permit, the gun had to be worn on the outside in a holster.

as tot he .45 ACP John. I shot 2 large black bears with mine, first was with 230gr. FMJ @ 850fps,. side head shot- dead right there.
Second was a 260gr. Speer HP, driven by 12.0gr. W630 powder made 960fps in my 5" Wilson barrel. Side shot through both lungs (missed the shoulder).
The bear walked some 30 yards, collapsed slid down a short incline (embankment) into a ditch - dead.
I am sure a heavy FN hard cast @ 950fps or so would handle a grizzly just fine.