I have several but my current favorite is a CVA Accura MRX .50 cal. Mine came from the factory with peep sights. I replaced the rear sight with an EABCO rail with receiver sight because it looked like the Game Dept. here in WA was going to allow use of 1x scopes. They did not! The rifle shoots extremely well with Federal B.O.R. Lock bullets and Blackhorn 209 powder. The rifle uses 209 shotgun primers, is of break open design with an easily removed breech plug. It is nitride coated, easy to clean, light and easy to hunt with. My favorite. (Sorry, I'm not a Buckskinner, just like to hunt the muzzleloader seasons.)