Description
If you're getting a new rimfire rifle or just need to verify everything's cycling right without burning ammo, these A-ZOOM training rounds do the job better than plastic alternatives. They're built from solid aluminum and hard anodized, so they won't fall apart after a few cycles through your action.
What Makes These Different From Cheap Training Rounds
These aluminum training rounds feel like the real deal when you load them. They've got the weight and dimensions of actual .17 HMR cartridges, so loading drills, magazine work, and chamber checks all feel genuine. The hard anodize coating keeps them smooth and reliable through repeated handling. You can load them into your magazines just like you would live rounds and work through your rifle's action without anything firing.
Ideal For Action Proving and Function Testing
These rounds are designed specifically to catch problems before you take your rifle to the range. Run them through your rifle to make sure the mag feeds correctly, the bolt strips rounds smoothly, and the ejection works as it should. They're what gunsmiths and hunters use for making sure everything's working right. The blue color makes them instantly recognizable, so there's no confusion between these and actual ammunition.
Built to Last Through Repeated Use
Because they're machined from solid aluminum instead of plastic, these can handle being cycled through your action over and over. The anodized finish protects against wear, so they'll stay looking good and functioning smoothly whether you're doing one function test or running through drills. A pack of six gives you enough to work with various training scenarios without needing a massive supply.
Key Specifications
- Caliber: .17 HMR
- Quantity: 6 rounds
- Material: Solid aluminum with hard anodize coating
- Construction: CNC machined to precise cartridge dimensions
- Color: Blue
- Length: 1.55 inches
- Manufacturer: A-Zoom (Lyman Products)
- Manufacturer Part Number: 12202
- UPC: 666692122026
- Product Type: Action proving dummy rounds
What’s Included
- 6 A-ZOOM .17 HMR aluminum training rounds
Frequently Asked Questions
Can I dry fire my .17 HMR rifle with these training rounds in the chamber?
No, these are action proving rounds designed for function testing and magazine cycling, not dry fire practice. The package includes a clear warning against dry firing. For dry fire work, you'll want dedicated snap caps with spring-loaded firing pin protectors. These training rounds are built for working them through your action to verify everything feeds and ejects correctly.
Do these training rounds load into magazines the same way real .17 HMR ammo does?
Yes. They're machined to the exact dimensions of actual .17 HMR cartridges, so they load into magazines and feed through your action exactly like live ammunition. That's what makes them so useful for testing whether a new magazine or used rifle is working right before you take it to the range.
How many times can I cycle these through my rifle before they wear out?
These aluminum rounds are much more durable than plastic alternatives and will handle repeated cycling. The hard anodized finish resists wear, but because they're solid aluminum without internal protective elements, they're not designed for the stress of dry firing impacts. As long as you're working them through the action normally for function testing, they'll hold up well.
Why are these blue instead of brass-colored?
The blue anodize makes them instantly recognizable and impossible to confuse with real ammunition. That's a critical safety feature, especially if you have these and live rounds in the same area. A quick glance at the color tells you immediately what you're handling.






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