The MEC Resize Ring in 12 gauge (MEC part no. 43512) is a replacement wear part for the depriming station on MEC 600 Jr shotshell reloaders. As reloading volume adds up, the ring wears and can eventually crack or stop resizing hulls fully back to spec, so having a spare on hand keeps a worn part from stalling your loading session. MEC recommends periodic replacement based on volume, and reloaders who see persistent resizing trouble even with a new ring can step up to a MEC Super Sizer.

Key Specifications

• Fits the depriming station on MEC 600 Jr shotshell reloaders.
• Sized for 12 gauge hulls.
• A wear item that should be replaced periodically based on reloading volume.
• A worn ring may stop fully resizing hulls back to spec.

Frequently Asked Questions

How often should this ring be replaced? MEC recommends replacing it periodically based on your reloading volume, since it wears down over time and can eventually crack or under-resize hulls.

What press does this ring fit? It’s built for the depriming station on MEC 600 Jr shotshell reloaders.

Buy the MEC Resize Ring, 12 Gauge

Keep your MEC 600 Jr depriming station resizing 12 gauge hulls to spec with a fresh ring on hand. Order it from our Lubbock, Texas gun shop, where our gunsmithing tools selection stocks MEC replacement parts across gauges, with fast shipping to your door.