Only one of the many B bears I have killed was within 100 yards,we shoot across the canyon on most of our bear hunts.Even under 100 I want a round that is going to break both front shoulders,I wouldnt take anything that wont shoot a 150 gr bonded bullet at 3000 fps or better.I have never lost a bear and I dont want to,there is no such thing as overkill when hunting a critter as tough as a bear.