Lyman gas checks protect cast bullets from hot powder gases and enable higher velocities. These gilded metal cups feature a crimp-on design for easy seating during bullet sizing. Pack of 1000.
Gas checks are an essential component for serious cast bullet handloaders. These Lyman gas checks are precision-engineered gilded metal cups designed to fit securely at the base of cast bullets.
When you fire a cast bullet, hot powder gases can erode the bullet's base, compromising accuracy and consistency. Gas checks create a protective barrier that shields the bullet material from this thermal and pressure erosion. The result is improved bullet integrity and the ability to push cast bullets to higher velocities than would otherwise be safe.
These gas checks are sized specifically for .35, .38 Special, and .357 Magnum calibers. Whether you're loading for a revolver or rifle, Lyman gas checks give you the confidence to reload cast bullets safely and effectively at competitive velocities.