A-Zoom‘s Rimfire Action Proving Dummy Rounds in .22 WMR (part no. 12204) is an inert snap cap — it contains no propellant and no primer and cannot be fired. These are precision CNC-machined training rounds — much more than a conventional snap cap — built for safety training, function testing, or safely decocking without damaging the firing pin. Stock up on this training ammunition for safe practice with your .22 WMR firearm.

Key Specifications

• The caliber is .22 WMR, matched to this specific dummy round.
• The rounds are precision CNC-machined, built to closer tolerances than a basic snap cap.
• Each pack holds 6 dummy rounds, enough for a full magazine or cylinder check.
• The rounds are reusable, built to withstand repeated cycling.
• Primary uses include safety training, function testing, and safe decocking.
• The rounds contain no propellant and no primer and cannot be fired.
• Action Proving Dummy Rounds are built to closely mimic real cartridge dimensions.
• A pack ships light enough to carry in a range bag alongside live ammunition.
• A-Zoom markets this line specifically for action and function testing, beyond basic dry fire.

Frequently Asked Questions

Is this real ammunition? No, these are inert dummy rounds with no propellant or primer — they cannot be fired.

How is this different from a basic snap cap? A-Zoom builds these to closer, more consistent dimensional tolerances specifically for reliably proving an action cycles correctly.

Buy A-Zoom 22 WMR Action Proving Dummy Rounds 6-Pack

Confirm the action cycles correctly before it matters, not during. Order from our Lubbock, Texas gun shop and it ships fast to your door.