I live in CO and went out last year for the first time for elk with my CVA Kodiak .50 with 100 gr. Pyodex Select and a 295 gr. Powerbelt Aero Tip. I did not harvest an elk so I can't tell you if that set-up works or not. In CO you can't use pelitized powder and no sabots. Also no scopes (fiber optic sights are ok) and the bullet cannot be more than twice as long as it is wide (No bullets over 1.0) for .50 cal. I do know that my rifle shoots this setup quite well. There are many types of conicals that one can use and if I had to do it again I might try a heavier bullet for the elk. Hope this helps.