The Hornady 32 Caliber/8mm Gas Checks are precision-engineered copper components designed to enhance the performance of cast bullets for hunters and reloaders.Hornady Gas Checks - 32 Cal/8mm diameter1000 count per boxCrimp-on copper constructionProtects bullet base from deformation and hot gasesReduces lead fouling in barrelCompatible with cast bullet reloadingThese high-quality gas checks crimp securely to the base of cast bullets providing essential protection while improving accuracy and reducing barrel maintenance for serious shooters and hunting enthusiasts.