MEC Super Sizer 12 Gauge Shotshell Reloading Steel Resizer

The MEC Super Sizer is a dedicated 12 Gauge shotshell resizing tool that brings fired hulls back to factory dimensions so they chamber, feed, and crimp reliably on a MEC shotshell press. It uses MEC's exclusive Power-Ring collet, with eight steel fingers that close evenly around the base of the hull and squeeze the brass section back to SAAMI specification in a single, smooth pull stroke.

Built from steel for long service life, the Super Sizer handles both high brass and low brass 12-gauge hulls and is the standard companion accessory for the MEC 600 Jr, 650, and 700 Versamec shotshell reloaders. The base tool can also be converted to resize 10, 16, 20, and 28 gauge hulls with the appropriate MEC conversion kit, making it a versatile foundation for any shotshell reloading bench.

Designed to quickly correct hulls that have worked loose, stretched, or drifted out of spec from repeated firing, the Super Sizer is a reliable addition to any shotshell reloading setup.