The Hornady Lock-N-Load 28 Insert (Hornady part no. 728) is a caliber-specific bushing sized for .284 caliber brass and built around Hornady’s Lock-N-Load quick-change system. The insert seats into compatible Lock-N-Load tools and lets reloaders swap between calibers on the same base tool in seconds instead of unscrewing and rethreading separate components. For 7mm-family shooters loading multiple .284 caliber cartridges, having the correct insert on hand keeps case prep moving without hunting for adapters or spare parts. It is a small piece, but the right insert size is what makes the Lock-N-Load system work as intended.

Key Specifications

• Sized for .284 caliber brass, matching the insert to this bore diameter.
• Built for Hornady’s Lock-N-Load quick-change system for fast caliber swaps.

Frequently Asked Questions

What tools does this insert fit? It is designed for Hornady Lock-N-Load compatible case prep tools that use interchangeable caliber-specific inserts.

Why use an insert instead of a dedicated tool per caliber? Inserts let you swap calibers on one base tool quickly instead of buying and storing a full tool for every chambering.

Buy the Hornady Lock-N-Load 28 Insert .284 Caliber

Keep your Lock-N-Load system ready for every .284 caliber case you load. Order it from Hornady‘s case preparation lineup, and our Lubbock, Texas team can help you round out the rest of your insert set.