The Accu-Ring is a sizing/seater die lock-ring whichprovides reference marks in increments of thousandths of an inch (0.001”).

• Sizing die (primary use) – Designed mainly for sizing dies,the Accu-Ring helps you zero in on what you want the headspace length of yourcases to be.
• Seater die (secondary use) – The Accu-Ring also allows youto make fine adjustments to bullet seating depths.

Notice: The distance of 0.001” is the distance between along and short reference mark as shown in Figure 1. This distance indicates theup or down adjustment of the die in the Co-Ax® Reloading Press. Actual up ordown movement of the die is 0.000998” per reference mark, which, for allintents and purposes, is one thousandth of an inch (0.001”).