Traditions Rifle Snap Caps .22-.17 HMR 12 Per Package. When you safely store your unloaded gun put a snap cap in the chamber and fire your gun to allow the firing pin to lay at rest. This will help prevent firing pins from breaking in the future. Snap Caps are also a great tool to practice dry firing your guns to teach safe gun handling improve your shooting skills and tune your trigger. .22- .17 12 per package. Specifications for Traditions Rifle Snap Caps .22-.17 HMR: Manufacturer: Traditions Caliber: .17 Hornady Magnum Rimfire .22 Long Rifle .22 Winchester Magnum Rimfire Quantity: 12 Package Contents: Traditions Rifle Snap Caps .22-.17 HMR The Traditions Rifle Snap Caps .22-.17 HMR is a quality addition to the Traditions lineup. For more great deals on Snap Caps by Traditions please browse our Traditions Shooting Accessories page. Traditions ASC22: Rifle Snap Caps .22-.17 HMR 12 Per Package