By: Boyd Allen

Boyd Allen — Sun, 04 Feb 2024 04:38:27 +0000

For the O ring used with a conventional lock ring, or a Lee Lock ring to work as intended they cannot be set for an exact dies setting that will repeat after the die is removed. This is because properly used the O ring is only compressed enough to prevent the die from rotating in the press as seating depth adjustments are made. Unfortunately this does away with spin the die in until it stops die changing. For me, for FL dies this has not been an issue, because I have gotten, pretty fast at setting a die. In the case of the Lee lock ring, if you tighten things to the point where they are metal to metal with the top of the press, all of the advantage of the O ring is lost.

By: Dan Liemeck

Dan Liemeck — Tue, 03 Oct 2023 15:41:37 +0000

Great article. As a new reloader I wondered a lot about Lee’s lock rings and have heard complaints about Lee having the orings. I haven’t had any issue except as noted that the rings can move. Lee now had their ultimate lock ring which has a set screw so it doesn’t move and I have been using on my bullet seating dies.

Comments on: Reloading TIP — O-Rings Can Help Reduce Run-out When Sizing

By: Boyd Allen

By: Dan Liemeck