The Hornady Lock-N-Load Anvil Base Kit (Hornady part no. AB1) attaches to the opposite blade of a standard caliper, turning it into a more accurate measuring setup when paired with the Hornady Lock-N-Load Headspace Comparator. The anvil gives case heads and bullets a large, flat surface to rest against instead of balancing on a caliper’s narrow jaw tip, which makes both ogive measurements and headspace or shoulder-datum readings noticeably easier to take consistently. It’s a multi-caliber accessory, so it works across whatever cartridges you’re measuring. For handloaders who track shoulder bump or seating depth closely, it’s a small part that removes a lot of measurement guesswork.

Key Specifications

• Attaches to the opposite blade of a standard caliper.
• Designed to pair with the Hornady Lock-N-Load Headspace Comparator.
• Provides a large, flat surface for case heads and bullets to rest against during measurement.
• Simplifies taking ogive measurements.
• Simplifies taking headspace and shoulder-datum measurements.

Frequently Asked Questions

What tool does this pair with? The Hornady Lock-N-Load Headspace Comparator, attached to a standard caliper.

What measurements does it help with? Ogive measurements and headspace or shoulder-datum measurements.

Buy the Hornady Lock-N-Load Anvil Base Kit, Multi-Caliber

Tracking shoulder bump precisely is one of the easiest ways to keep sizing dies dialed in from batch to batch. Order from our Hornady lineup in our reloading equipment selection, and our Lubbock, Texas team can help you round out your measuring tools.