What the heck is a Gas Check?!! скачать в хорошем качестве

What the heck is a Gas Check?!!

See part 1    • What the heck is a gas check-Part 2:  Free...   Freechex II gas check maker. They are little caps that go behind a cast lead bullet to allow the bullet to be fired with a higher powder charge-thus higher velocity, without leading (fouling) up the barrel. I do not get anything from Freechex. I just think it is a good product. http://www.freechex.net/ From WIKI: High pressures, such as those commonly encountered in maximum loadings of magnum revolver cartridges or rifle cartridges, often result in significant problems when coupled with cast or swaged lead bullets. It was long thought that the high temperatures melted the base of the bullet, but this is no longer thought to be the case. Instead, the high pressures allow propellant gas to escape past the bullet, causing gas cutting, which increases lead deposits in the barrel and unbalances the bullet. A gas check provides a thin layer of harder but still malleable metal on the base of the bullet that obturates to provide a seal and prevents the propellant gas leakage that causes gas cutting, and help the bullet grip the rifling.