Dryfiring your centerfire firearm will not affect the functioning of the gun. However, if you plan to dryfire a rimfire model, we suggest you use snap caps to prevent any firing pin damage. If you close the bolt and pull the trigger once, it will not have any affect on the gun, but if you plan to fire the gun repeatedly without a live round in the chamber, you should use snap caps.
Can I dryfire my firearm?
