Its my understanding that snap caps have at least 2 purposes; dry firing firearms and relieving tension on the firing pin spring when the firearm is stored. I use the snap caps after cleaning and prior to storing my shotgun. If I opened the action on my shotgun to remove the snap caps, I would be re-cocking the triggers. Thus I leave the snap caps in the shotgun after I pull both triggers. Perhaps some models of shotguns may be stored for lengthy periods of time without degradation of the firing pin spring. However some of my shotguns are older than me so I use snap caps prior to storage. I will be transitioning to A-zoom aluminum snap caps as a result of this incident.

Last edited by GR8BAY; 11/05/17 05:00 PM.