A-Zoom Rimfire Action Proving Dummy Rounds 6 per Pack .17 Hornady Magnum Rimfire

A-Zoom Rimfire Action Proving Dummy Rounds 6 per Pack .17 Hornady Magnum Rimfire. A Zoom dummy rounds are perfect for checking functionality and training new shooters. The distinctive blue color enables a clear visual of the dummy round when you do cylinder or chamber press checks too. When at the range live firing you can place the Snap Caps randomly into a loaded magazine to practice malfunction and clearing drills in a semi-auto. They're handy in other repeating rifles and handguns to determi