The Hornady Lock-N-Load O.A.L. Gauge (curved) provides a reliable method for measuring overall cartridge length and seating depth relationships across multiple rifle platforms. It is intended to determine the cartridge-to-rifling relationship (the “jump”) to support consistent handload setup. This curved version inserts through the ejection port and is compatible with a broad range of rifle actions when used with the appropriate Modified Case (sold separately).
Key Specifications
- The tool is designed to Measure overall cartridge length (O.A.L.).
- It fits Multi-Caliber rifle chambers.
- Compatible range: .17 Remington – 500 Nitro.
- Model style: Curved.
- Weight is 0.22 lbs.
- Product type: Overall Length Gauge.
- Dimensions are 1.55 X 4.55 X 15.65.
- Quantity included: 1.
- To use, the gauge requires a Modified Case (sold separately) threaded to fit the firearm chamber.
- Measured accuracy: 0.001″.
For reloaders focused on repeatable seating depth and consistent jump-to-rifling relationships, the Lock-N-Load O.A.L. Gauge (curved) is a practical tool that simplifies measurement across a variety of rifle platforms. Use it with the correctly sized Modified Case to establish precise seating depths and streamline your load development process.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.



