The A Zoom Metal Snap Cap is perfect for shooting and dry-firing training as well as function testing without damaging the firing pin. These Snap Caps Training from A-Zoom are constructed of solid aluminum that is CNC-machined to match exact cartridge dimensions, are hard anodized to ensure smooth functioning and are great for safety training. The A Zoom Metal Snap Cap for 6.5 PRC 2-pack are the perfect accessory for preventing damage to your firing pin in the unfortunate event that a snap cap is dropped in one last second. This is a great cap to have on hand when you need a realistic way to dry fire without a firearm. Please take care to follow the proper protocol set by the manufacturer, as A Zoom Metal Snap Caps are sensitive to heat and can melt at super hot temperatures. Therefore, they cannot be loaded in real firearms chambers.