Federal 155 primers, the same primers that Federal primers use in their high-quality ammunition. Made to exacting standards for dependable ignition. Federal 155 Primers are in stock now for sale and are an excellent choice for reloaders of rifle and handgun cartridges since they are both inexpensive and dependable. Federal large pistol primers’ distinct priming mix and reliable ignition make them ideal for high-volume shooters and those just learning how to reload a firearm.