Centerfire refers to a type of firearm cartridge where the primer is located in the center of the cartridge case's base. This design allows for more reliable ignition compared to rimfire cartridges, which have the primer located in the rim. Centerfire cartridges are commonly used in rifles and handguns, making them popular for both hunting and target shooting. The centerfire mechanism enables the use of larger and more powerful cartridges, which can accommodate higher pressures. This versatility allows for a wide range of ammunition options, including hollow point and full metal jacket bullets, catering to various shooting needs and preferences.