MEC Super Sizer Die Set – 10 Gauge Converter (816710)

Description

If you already own a MEC Super Sizer and want to start resizing 10 gauge hulls, this is the piece you're after. The die set includes the gauge-matched collet and pad that thread into the base of your existing Super Sizer, letting one tool handle multiple gauges. The Super Sizer uses MEC's Power-Ring system, where eight steel fingers wrap around the base of the hull and apply even pressure to bring the brass back to factory dimensions, so shells drop into the chamber and feed cleanly instead of sticking or jamming.

Making the Switch to 10 Gauge

Changing gauges on the Super Sizer is a quick bench job. You loosen the locking nut under the base, unthread the old collet and pad assembly, thread in the new 10 gauge parts, set your depth, and lock it back down. Most folks have it done in about five minutes with nothing more than a crescent wrench and a screwdriver. That's a big part of the appeal here: instead of buying and storing a dedicated 10 gauge sizer, you keep one Super Sizer and just rotate die sets as your loading needs change.

Why the Die Set Beats Buying Loose Parts

You can track down the collet and pad separately, but the 816710 kit bundles both pieces you need for the conversion, and buying them together is easier on the wallet than sourcing them one at a time. The pad is sometimes listed as a shell lifter on MEC parts diagrams, though on the Super Sizer it functions as a support pad rather than lifting anything. Either way, the set gives you the correct matched components for a proper 10 gauge setup.

Handy for High-Brass 10 Gauge Loads

Ten gauge hunting hulls tend to run high-brass, and properly resized brass is what keeps those big shells chambering right, especially in doubles and pumps. If you hit resistance on stubborn high-brass hulls, a touch of dry lube on the brass goes a long way toward smooth, consistent cycling. This is made in the USA and built to the same standard as the rest of the MEC reloading lineup.