Also please notethat in the last few decades I have noticed quite a few Chinese Companies commence making and selling dummy rounds that are just like the A-Zoom Snap Caps. I know that when dry firing, you will need to not have any Dwell ammunition inside the space with you. https://snapcapsforshotgun03648.blogproducer.com/35990146/shotguns-shoot-practice-bullets-things-to-know-before-you-buy