You may have missed the introduction of the .577 T Rex when it debuted several years ago. Its an over sized elephant gun that shoots a 750 grain bullet at between 2,150 and about 2,500 fps depending on the load. The target is hit with 10,000 pounds of force when impacted by a round from this thirteen pound rifle. There was a video made of of people test firing it. Of the twenty four unsuspecting people who shot it, seven people could not hold on to it during the recoil when it fired, and the rifle flew from their grasp....