Hornady Lock-N-Load Cartridge Gauge 6.5 PRC Silver - Model 380721
- Caliber-Gauge:
- 6.5 Precision Rifle Cartridge
- Function:
- Ensure a Correct Fit
The Hornady Lock-N-Load Cartridge Gauge in 6.5 PRC is a no-nonsense go-or-no-go tool that tells you exactly what you need to know: will your reloaded round chamber safely in a SAAMI-spec firearm? Instead of guessing or risking a stuck case, drop your finished ammo into this gauge and get instant confirmation that your sizing and overall length are dialed in. Whether you're a precision rifle reloader working up match loads or a hunter verifying your hunting ammunition, this is the kind of simple, reliable check that catches mistakes before they happen downrange.
Hornady's Lock-N-Load system is built around speed and repeatability. The cartridge gauge itself is a tight, precision-machined reference that mimics a real SAAMI chamber. No fancy electronics or guesswork—just a direct, physical verification that your cases are trimmed to spec and your ammunition sits at the correct overall length. It's the same principle match shooters and serious handloaders have relied on for years, now available in the 6.5 PRC caliber for modern long-range hunters and precision rifle competitors.
This silver-finish model fits seamlessly into any reloading bench workflow. Use it as a final quality control step on every batch, or spot-check whenever you change dies, adjust seating depth, or move between powder charges. Once you develop a load that passes the gauge, you can load with confidence that your ammunition will feed and function reliably in any firearm chambered for 6.5 PRC.
Key Features
- SAAMI-spec go/no-go verification for safe, reliable chamber fit
- Precision-machined reference standard for 6.5 PRC ammunition
- Catches sizing and overall length errors before they cause problems
- Simple, repeatable design—no batteries or calibration required
- Integrates with Hornady's Lock-N-Load reloading system
Specifications
| Product | Hornady Lock-N-Load Cartridge Gauge |
| Caliber | 6.5 PRC |
| Model Number | 380721 |
| Finish | Silver |
| Type | SAAMI Chamber Reference Gauge |
Frequently Asked Questions
What is a cartridge gauge and why do I need one for 6.5 PRC reloading?
A cartridge gauge is a precision-machined reference that matches a SAAMI-spec chamber. When you drop a finished round into it, you verify that your case sizing and overall cartridge length are correct before shooting. It's the fastest way to catch mistakes—oversized cases or incorrect bullet seating—that could cause chambering problems, feeding issues, or safety hazards.
How does the Hornady Lock-N-Load Cartridge Gauge work?
Simply load your finished round and attempt to seat it in the gauge. If it fits, your ammunition meets SAAMI specifications and will chamber in a standard 6.5 PRC firearm. If it doesn't fit smoothly, something is out of spec—typically case diameter or overall length—and you need to adjust your setup before loading more rounds.
Does this gauge work with all 6.5 PRC ammunition?
This gauge is caliber-specific to 6.5 PRC and verifies fit against SAAMI chamber specifications. It will work with any 6.5 PRC ammunition—factory or handload—and any standard 6.5 PRC firearm. It will not work with other calibers.
Is this compatible with other Hornady reloading equipment?
Yes, the Lock-N-Load Cartridge Gauge integrates with Hornady's Lock-N-Load reloading system and can be used alongside other Hornady reloading tools as part of a complete setup.

