The MEC Resize Ring in 20 gauge (MEC part no. 43520) is a replacement wear part for the depriming station on MEC 600 Jr shotshell reloaders. With enough reloading volume, the resize ring wears down and can eventually crack or stop fully resizing hulls back to spec; keeping a spare on hand means a worn ring doesn’t stall your loading session. MEC recommends replacing this ring periodically based on how much you reload, and if resizing becomes a persistent issue even with a fresh ring, stepping up to a MEC Super Sizer is the next option.

Key Specifications

• Fits the depriming station on MEC 600 Jr shotshell reloaders.
• Sized for 20 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 do I know when to replace this ring? MEC recommends replacing the resize ring periodically based on your reloading volume, or as soon as it stops fully resizing hulls back to spec.

What if hulls still won’t resize properly with a new ring? If resizing remains an issue with a fresh ring installed, MEC’s Super Sizer is a step-up alternative worth considering.

Buy the MEC Resize Ring, 20 Gauge

Keep your MEC 600 Jr depriming station resizing 20 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.