12 Gauge Snap Cap Insert

This is an insert that can be “reloaded” into an empty/fired 12 gauge shot shell, to turn it into a dummy round aka snap cap for the purposes of practice or function checking. You will need access to a reloading press, roll crimper or similar equipment to install these. I used the Lee Load All II, which can be found quite cheaply. I've remixed this from another file for two reasons. The first being to include a cavity where approximately 1 ounce of shot can be glued in (I used epoxy) in orde