I will be hunting elk with the Muzzleloader in Colorado this fall. I have a CVA Optima, .50 cal, 1:28 twist, with a 26" barrell. I believe the max pelletized powder that I can use is 100 grains. My question is, what bullet and bullet weight do you suggest? The Powerbelt website suggests 348 or 405 grain Aerotips, which seems heavy to me. Your input is appreciated.