I would use it at under 50 yards with a heavy loaded heavy hard cast. As well as what others have said, "Keep Firing" until you hear the click, then reload and be ready for another fire fight. An Elk can take alot of punishment before they will drop if you don't hit the sweet spot with your first shot. Even a double lung shot they can travel along ways in just a few seconds. Good luck to you. I would think about getting a .44mag or bigger just for the security in case the big boy is out a little farther then 50 yards though. rupe