A-Zoom’s Action Proving Rounds for .17 HMR let rimfire shooters run function checks, feeding tests, and dry-fire drills across a full magazine without a single live round downrange. The 6-pack loads a whole magazine at once for realistic cycling tests.
- Precision aluminum construction dimensioned to true .17 HMR specs
- 6-pack loads a full magazine for realistic feed and function testing
- Protects the rimfire firing pin from dry-fire wear
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