How the shotgun fires A shotshell is inserted into the chamber. The action is closed and firing pin pushed back and held back under spring tension. Tr
{"Image DocumentName": "How the shotgun fires A shotshell is inserted into the chamber.", "Image ImageDescription": "The action is closed and firing pin pushed back and held back under spring tension. Trigger is pulled, causing firing pin to strike the primer producing a spark. The spark ignites the gunpowder. Gas converted from the burning powder expands in the shell.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}