50#....what model? FPS? It is all going to depend on your FPS I would think as well as arrow weight. I could pick up an older bear whitetail II pulling 60lbs and not get as good of effect as a newer 40lb bow with the same broadheads. Everyone's advice is great I think, but for accurate advice I would need to know more. Maybe I am blind and missed the information. For what it is worth, I blew threw an elk last year with a hoyt trykon 62.5lbs draw shooting a 30 inch axis at 8.5gpi tipped with a 100grain 3 blade muzzy at 62 yards and the cow only made it 60 yards down hill before expiring. Best of luck with the bowhunting elk!