On deer, I think gamekings are a great balance of accuracy and terminal performance. I have great luck with em. Would I ever use em on moose or elk? No way. Partitions or my new favorite the Barnes TSX is used. The accuracy of Coreloks will work. I can regularly get 2 to 3" groups at 100 yards out of any of my rifles with factory coreloks. Like I said I used em for 15 years. But I never did care about getting one hole groups until 8 or so year ago. Now, 2" groups is a disappointment. I am not knocking the new ultras. I have yet to form a opinion on em yet.