A-Zoom Rimfire Action Proving Dummy Rounds for .22 & 17 HMR Ship from MI The 15" chain effectively limits

The 15" chain effectively limits the range of motion

Stackable design

its side-release buckles allow quick donning

Adjustable Bungee Retention: Dual-position system for customizable bottle security

A-Zoom Rimfire Action Proving Dummy Rounds for .22 & 17 HMR Ship from MI The 15" chain effectively limitsA Zoom Rimfire Action Proving Dummy Rounds 17 HMR, 22LR, or 22 Winchester (Blue) Train Smart. Handle Safe. Tired of damaging your rimfire firearm during dry fire practice? The A Zoom Rimfire Action Proving Dummy Rounds solve this problem by providing a safe, reliable training solution that mimics the size and function of real ammunition. These are not snap caps they are precision CNC machined dummy rounds made from solid aluminum and hard anodized for