In summing up the reasons why the magnum cartridges are the best choice with the right load for shooting all classes of North American big game under varied hunting conditions…the answer is quite simple: If you need the extra velocity they afford for longer sure hit ranges, you have it, or the extra punch they pack for heavy animals, you have it; if you don’t need it no harm is done. I have always been highly skeptical of the word overkill.” –Bob Hagel, Game Loads and Practical Ballistics for the North American Hunter.