Federal Premium is redefining modern in-line performance with the Trophy Lead Muzzleloader Bullet. Its exclusive B.O.R. Lock MZ System provides outstanding accuracy in a non-sabot design that's easy to load, scrubs fouling from the breech and ensures consistent bullet seating. The system's foundation is a polymer cup that's permanently attached to the bullet base. The force of ignition pushes the cup forward onto raised bands along the bullet shank, expanding its diameter. This engages the rifling and seals the bore, optimizing velocity and accuracy. The rear of the B.O.R. Lock MZ cup features a hard, fiber-reinforced polymer ring that scours fouling from the breech as the bullet is pushed into place. This decreases the need to clean between shots and makes it easy to seat the bullet at the exact same depth for every shot. Because there's no bulky sabot, required loading force averages about half that of most sabot bullets. FeaturesNon-sabot design is approv...