I think bullet penetration is key when it comes to sucessfully taking an animal as large as and elk, especially a big bull. Elk are extremely tough animals and I want a ML bullet to get in the "boiler room" and do as much damage as possible. A HP bullet may not do that. Personally, I shoot a No Excuses Conical, 460gr. over 90 gr. of Goex 3F in my Omega. Great accuracy and terminal performance. I have taken several elk and deer with this combo.