The N320, formerly known as 3N22, is a fast burning, porous handgun powder. N320 is one of our most popular handgun powders and can be used for a wide range of pistol calibers from .32 to .45. It is most commonly used by sport and hobby shooters such as Cowboy Action shooters, but as a very reliable gun powder it is also suitable for authority applications. The powder type is tubular, with grain dimensions 1,1 mm x 0,8 mm (length x diameter), and as all our reloading powders it includes the added decoppering agent.