I'm new to the forum, but I'm an accomplished elk hunter. I've killed my share of bulls over my little short elk hunting career. More important than the round you choose, is zeroing your rifle. You need to make sure you take the time to zero it at the elevation that you will be hunting. There are alot of good rounds, and I'm sure you will choose a good one, but if you're not zeroed at, or close to your hunting elevation you could miss that trophy your going for. Good luck!