Reloading requires precision—and the right tools make all the difference. That’s where the Accu-Ring Die Lock Ring comes in.
Simply put, the Accu-Ring is a lock-ring for your sizing and seater dies that makes fine-tuning adjustments quick, easy, and repeatable. It helps you achieve the exact headspace and seating depth you’re after—without guessing.
The Accu-Ring provides reference marks in increments of one-thousandth of an inch (0.001”), giving you exact control when setting up your dies:
- Sizing Die: Zero in on your desired headspace length with repeatable precision.
- Non-Micrometer Seater Die: On non-micrometer seater dies, the Accu-Ring acts like a micrometer adjustment, allowing you to make fine bullet seating depth adjustments with confidence.

Each long and short reference mark equals a 0.001” adjustment, allowing you to dial in settings with incredible accuracy.
And now—we’re making it easier to stock up. The Accu-Ring is officially available in a convenient 3-pack! Perfect for outfitting multiple dies or keeping spares ready. See the Accu-Ring in action in this short video to understand how it works.
Whether you’re setting up multiple dies or just want spares on hand, the new 3-pack is the most efficient way to get the Accu-Ring.