Description
A-Zoom snap caps are precision-machined from solid aluminium to the dimensions of the live cartridge, then hard anodised for smooth feeding and long life. Each round carries A-Zoom’s “Dead Cap”, a durable primer insert that cushions the firing pin and is rated to survive more than three thousand dry fires – over thirty times the life of a plastic snap cap. The .300 Winchester Magnum 2-pack (A-Zoom part 12237) lets you tune a trigger, practise bolt cycling and offhand dry firing, function-test the magazine and feed, and de-cock safely without dropping the pin on an empty chamber. A-Zoom is a Lyman Products brand.
Key features
- .300 Winchester Magnum, 2 per pack
- CNC-machined solid aluminium, hard anodised
- Dead Cap rated for 3,000+ dry fires
- For trigger tuning, dry-fire practice, function testing and safe de-cocking
- A-Zoom part 12237 (UPC 666692122378)
Frequently asked questions
Can I keep one in the chamber?
Yes – that is their purpose, but store them separately from live ammunition and check the chamber every time.
Will they wear out?
The aluminium body is near-permanent; the Dead Cap outlasts plastic caps many times over and A-Zoom sells replacements.
Is a licence needed?
No. Snap caps are inert training aids and ship Australia-wide.
Shooting accessory – not a firearm or ammunition; no licence is required to purchase and it ships Australia-wide. Specifications from the manufacturer. 3 Gun Tactical, Licensed Firearms Dealer 50001578, Tingalpa QLD.





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