primerpocket
A primer pocket is the recessed cavity in the base of a center-fire cartridge case that holds the primer, the initiating component of the cartridge. The pocket sits at the center of the case head and is formed during case manufacture. Its dimensions are designed to accommodate a specific primer size and type, such as small pistol, large pistol, small rifle, or large rifle.
The primer sits in the pocket and, when struck by the firing pin, ignites the primer's explosive
In reloading and ammunition production, primer pockets may be uniformed or cleaned to maintain consistent primer
There are differences in primer systems that affect the pocket. Boxer primers, where the anvil is inside
In summary, the primer pocket is a critical, standardized feature of center-fire cartridge cases that houses