The Hornady .270 Caliber Gas Checks are essential components for bullet casters looking to enhance performance and protect their cast lead bullets. These crimp-on gas checks seal gases and prevent base deformation during firing.Hornady Gas Checks for .270 caliber bullets1000 pieces per boxCrimp-on design attaches during bullet sizing processSeals gases at bullet base for improved accuracyProtects cast lead bullets from deformationIdeal for serious bullet casters and reloaders who demand consistent performance and protection for their custom cast bullets.