Caliber: 50 - Bullet Weight: 350 Grains - Bullet Style: Lead Tipped Muzzleloader - BALLISTIC COEFFICIENT: 0.209 - B.O.R. Lock MZ� System: Expanding polymer base cup engages rifling and seals the bore for extraordinary velocity and accuracy - Required loading force averages about half that of most sabots - Fouling-cutting ring scours powder residue from the breech as the bullet is loaded resulting in consistent seating and reducing the need to clean between shots - Tough hard-hitting lead bullet with a polymer tip