Interestingly I just talked to a friend who has a friend who investigates bear attacks in Alaska. This is what he was told. After investigating 40 of these attacks (I believe that was the number) the guy is adamite about using a revolver. The reason being is too many people limp wrist the semi's when the bear is on them causing a jam and when pressing the gun into the bear it causes the slide to be pushed back causing it to fail to fire.
