1) IMO any 180 gr hunting bullet at -06 velocity will do the job on deer, elk or moose. Yes, even common cup and core bullets, that said, your choices of ammo are very good indeed. Use which ever shoots best in your rifle.
2) Pay careful attention to what szihn and bsa1917hunter have said there is much truth to their opinions. They are experienced hunters and often offer good advice here on the 'fire. Despite all the LR hoopla on TV and the IN, most game, including elk even out west are shot at much closer ranges. You are the biggest variable.
3) Good luck on your CO hunt in the fall.
