The Hornady Lock-N-Load Comparator Insert in .416 Caliber (part no. 13/41) is a precision-sized component of Hornady’s LNL measuring system, not a case for loaded ammunition. It’s built to mate with your LNL gauge body so you get a repeatable, caliber-specific reference point every time you check a critical dimension on your brass. Reloaders who run a Lock-N-Load gauge already know that consistency lives in the details, and matching the insert to the exact caliber you’re measuring is where that consistency starts. This insert keeps your .416 Caliber measurements honest, batch after batch.

Key Specifications

• Precision sized for .416 Caliber to fit the Hornady Lock-N-Load gauge system.
• Gives a repeatable, caliber-specific reference point for measurement, not a loadable case.
• Machined to mate directly with your existing LNL gauge body.
• Comes ready to use — no modification needed before it threads onto the gauge.
• Keeps readings comparable from one reloading session to the next.

Frequently Asked Questions

What is this used for? It threads onto a Hornady Lock-N-Load Precision gauge to give you a repeatable, caliber-specific reference for headspace and cartridge overall length measurements.

Can I load and fire this insert like a normal case? No — this insert is a measuring accessory for Hornady’s Lock-N-Load gauge system, not a case intended to be loaded or fired.

Buy the Hornady Lock-N-Load Comparator Insert, .416 Caliber

Keep your measurements accurate and repeatable with the correct caliber-matched accessory. Order from our Lubbock, Texas gun shop for fast, insured shipping, and browse the rest of our reloading equipment selection.