Hornady Lock-N-Load Overall Length Gauge for Automatic/Lever Action Firearms
- Quantity:
- 1
- Size:
- Curved
- Weight:
- 0.22 lbs
- Compatible With:
- .17 Remington - 500 Nitro
- Function:
- Measure
The Hornady Lock-N-Load Overall Length Gauge for Automatic/Lever Action Firearms is a precision reloading tool designed to help you establish exact bullet seating depth—a critical variable for consistent accuracy. If you're loading ammunition for your lever-action rifle, semi-automatic carbine, or other auto/lever firearms, controlling the relationship between your bullet's depth and its jump to the rifling can make a measurable difference in shot-to-shot consistency. This gauge takes the guesswork out of that measurement.
The Lock-N-Load design works by helping you establish baseline overall length (O.A.L.) for your specific firearm and ammunition combination. Accurate to within 0.001 inches, it lets you dial in a uniform seating depth across your entire batch of handloads. That precision translates directly to tighter groups on the range and more reliable field performance when it counts. It's a straightforward approach to a detail that separates mediocre handloads from really accurate ones.
Like other components in Hornady's Lock-N-Load family, this gauge slots into a workflow that rewards precision-minded reloaders. Whether you're fine-tuning loads for hunting or range work, establishing your O.A.L. early and sticking to it eliminates one more variable that can degrade accuracy.
Key Features
- Measures bullet seating depth to 0.001-inch accuracy
- Designed for automatic and lever-action firearms
- Helps optimize bullet-to-rifling jump for consistent accuracy
- Integrates with the Hornady Lock-N-Load reloading system
Specifications
| Brand | Hornady |
| Product Type | Overall Length Gauge |
| Accuracy | ±0.001 inches |
| Application | Automatic and lever-action firearms |
Frequently Asked Questions
Do I need a modified case to use this gauge?
Yes. The Hornady Lock-N-Load Overall Length Gauge requires a modified case, which is sold separately.
What firearms is this gauge compatible with?
This gauge is designed specifically for automatic and lever-action firearms.
How precise is the measurement?
The gauge measures overall length to within 0.001 inches, giving you the precision needed to maintain uniform seating depth across your loads.

