Hornady 380727 Cartridge Gauge 25 Crd .257
The Hornady Lock-N-Load Cartridge Gauge in .257 Crd (.25 Crd) is a precision measuring tool built for reloaders who need to verify that their finished ammunition will chamber safely in SAAMI-spec firearms. Whether you're hand-loading rifle rounds or verifying factory ammunition, this cartridge gauge ensures your cases and finished rounds meet industry standards before they hit the range or field. It's a simple but essential step in the quality-control process that separates careful reloaders from those who skip the details.
Hornady's Lock-N-Load system is designed for quick, repeatable checks without guesswork. The gauge accepts loaded rounds and empty cases, allowing you to confirm proper fit in a standard chamber. This is especially valuable if you're working up new loads, switching between firearms, or pushing tolerances—it catches problems before they become unsafe or waste components. The straightforward design means you don't need electronics or complicated setup; just insert, check, move on.
If you're serious about reloading ammunition in .25 caliber, a cartridge gauge should be part of your bench routine. It's the kind of tool that seems minor until you realize how much time, safety, and component cost it can save over a season of shooting.
Key Features
- Caliber-specific design for .257 Crd (.25 Crd) ammunition
- Verifies SAAMI compliance before loading or firing
- Works with both loaded ammunition and empty cases
- Part of Hornady's Lock-N-Load modular system
- Simple, field-proven design with no batteries or complexity
Specifications
| Caliber | .257 Crd (.25 Crd) |
| Brand | Hornady |
| Product Type | Cartridge Gauge / Case Gauge |
| Hornady Model | 380727 |
Frequently Asked Questions
What is a cartridge gauge used for in reloading?
A cartridge gauge lets you verify that your loaded rounds and cases will fit properly in a SAAMI-spec chamber. It's a quality-control check to catch out-of-spec ammunition before it's fired, protecting both your firearms and your safety.
Will this gauge work with my .25 caliber rifle?
This gauge is designed for .257 Crd (.25 Crd) ammunition. Make sure your rifle is chambered in this exact caliber; using a gauge in the wrong caliber can give false readings and is unsafe.
Can I use this gauge to check both loaded rounds and empty cases?
Yes. The Hornady Lock-N-Load Cartridge Gauge works with both finished ammunition and empty cases, making it versatile for different steps in your reloading workflow.
Is this part of a larger reloading system?
This gauge is compatible with Hornady's Lock-N-Load modular system, though it functions as a standalone measuring tool. You don't need other components to use it.

