Alligator Gas Checks by Gator .500 S&W 250 pieces

Alligator Gas Checks by Gator .500 S&W 250 pieces
250 gas checks for .500 S&W

Gas checks are small tombak cups that are pressed onto the base of cast lead bullets. At the same time, calibration and bullet lubrication are performed. Gas checks are used when a V0 over 450 m/s is achieved. The gas pressures required for this speed generate such a high temperature that the lead would melt. The gas checks are firmly pressed and anchored into the bullet during calibration. This prevents the lead from melting.