In the past 15 years, the dozen elk I have taken all fell to a 50 cal. TC Hawken. I am going to Montana this year, which doesn't have a muzzle loader season so I'm taking the biggest centerfire I have. It is a 30-06 and compared to the smoke pole, I have all kinds of energy and range. I will be deer hunting at the same time so I probably wouldn't take a larger caliber if I had it. I prefer to use a .270, 6.5 x 55, or 7mm08 for deer. It's the hunter, and not the gun that bags the game.
james