Well, TRIC wanted a 120 gr bullet. I would opt for a bigger bullet myself, I was just playing by the rules. My line of thinking on this one is if you are going to use a light for critter bullet weight, you might as well use a tough, light for caliber bullet that will retain most of its weight. It doesn't have the SD that a .257 120 PT does, but with the 90% weight retention I would think that it would still go plenty deep into an elk.