Win any competition with the power, manageable recoil and precision of Federal Action Shotgun rifled Firearm Ammunition. The hulls' rigidity improves cycling through both tube- and magazine-fed shotguns, for fast, reliable performance when fractions of a second mean everything. The proven Federal TruBall system uses a polymer sphere in the base of the slug to center the projectile as it travels down the barrel, for unmatched accuracy through smoothbores.