Lyman gas checks protect cast bullets from hot powder gases while enabling higher velocities. These gilded metal cups feature a crimp-on design for easy seating during bullet sizing. Pack of 1000.
Gas checks are essential components for anyone serious about cast bullet reloading. These gilded metal cups seat into the base of cast bullets, providing critical protection against erosion from hot powder gases.
Cast bullets are economical and effective, but they require protection from the intense heat and pressure of modern powder charges. Gas checks serve as a barrier between the bullet base and hot gases, preventing erosion and leading. This protection allows you to push velocities higher than unsupported cast bullets can safely handle, expanding your reloading options.
The crimp-on design makes seating straightforward during your bullet sizing process. No special tools or complicated procedures—just reliable performance, cartridge after cartridge.
Lyman offers gas checks in ten caliber-specific sizes to match your reloading needs, from .22 through .45 caliber.