What type of ammo does center fire ammunition use?

Center fire ammunition utilizes a primer located in the center of the cartridge base, which ignites the gunpowder when struck by the firing pin. This design allows for the use of various types of propellants, including smokeless powder, which is more efficient and produces less smoke than traditional black powder. The ability to replace the spent primer is another advantage, as it makes center fire ammunition reusable and generally offers better reliability and performance compared to rim fire ammunition, where the primer is part of the case itself. Therefore, the use of the term "center fire" specifically ties directly to the design and functioning of this type of ammunition.