Lyman™ Gas Checks 30 Caliber Box of 1000
The Lyman™ Gas Checks 30 Caliber Box of 1000 are copper cups that crimp onto the base of cast bullets to protect them from the hot, burning gases that propel the bullet out of the barrel. Gas Checks also aid in the reduction of fouling by keeping less lead from being melted in the barrel. Packaged in boxes of 1000.