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 design supports a wide range of calibers, from small pistol rounds to large rifle cartridges. This versatility enables shooters to choose from various ammunition types, such as hollow point for self-defense or full metal jacket for target practice. Overall, centerfire cartridges are essential in modern shooting sports.