Hornady Lock-N-Load C1550 Curved O.A.L. Gauge
Precision curved O.A.L. gauge for all rifle types. Measures bullet seating depth to .001" accuracy. Inserts through ejection port. Modified case required (sold separately).
Hornady Lock-N-Load Curved O.A.L. Gauge
The Lock-N-Load O.A.L. (Overall Length) Gauge is an essential tool for handloaders serious about precision. This curved model works with virtually all rifle platforms, making it one of the most versatile measuring instruments in your reloading bench.
Compatibility
- Autoloader, lever-action, and pump-action rifles
- Bolt-action and single-shot firearms
- Inserts conveniently through the ejection port
- Not compatible with Adapter "D" or short-bodied cases
How It Works
The gauge measures the critical relationship between your bullet's seating depth and the "jump" to the rifling. This distance directly affects accuracy and consistency. By using a modified case (sold separately) that fits your firearm's chamber, you thread it onto the gauge to obtain precise measurements.
Precision & Accuracy
- Measurements accurate to 0.001 inches
- Enables uniform seating depth across all your reloads
- Improves overall accuracy and consistency of loaded ammunition
- Industry-recognized as the gold standard for O.A.L. measurement
What You Need to Know
A modified case specific to your firearm's chamber is required but sold separately. Once you have this, the Lock-N-Load system makes achieving precision seating depth straightforward and repeatable—essential for serious handloaders.
