If you would like to read Pope's description of his muzzle loading system and see some pictures of his bullets go to Google Search Books and look up "The American Rifle" by Townsend Whelen. On pp 418 he begins a discussion of the system. The entire book can be downloaded and it's well worth it. The bullets seem to be cylindrical with a blunt nose and multiple lube grooves and of groove diameter cast of relatively soft lead tin alloy. Hoch can likely supply you with copies of the Pope bullets.

Jerry Liles