Pachmayr Snap Caps Features The Pachmayr Snap Caps in 7mm PRC are built to the same external dimensions as a live cartridge allowing them to feed chamber and extract through a rifle s action just like a real round. This makes them useful for dry fire practice where repeated trigger presses on an empty chamber can damage a firing pin over time on some rifles. Using a snap cap protects the firing pin while still letting the shooter build trigger control and follow-through through repetition. They are also useful for verifying that a rifle s magazine extractor and ejector are all functioning correctly before taking the rifle out for live fire. Constructed from aluminum the snap caps are built to survive repeated cycling without deforming or jamming the action. This listing includes 2 snap caps per pack enough for basic function checks or to top off a dry fire practice routine. Because they are sized specifically for 7mm PRC shooters get a direct no-guesswork fit in their rifle s chamber and magazine. For 7mm PRC rifle owners who want a safer way to dry fire practice or check function Pachmayr Snap Caps are a simple practical accessory. Pachmayr Snap Caps Specifications Manufacturer: Pachmayr Model: Snap Caps Caliber: 7mm PRC Material: Aluminum Rounds Per Box: 2 Available At: GrabAGun