MEC Super Sizer Die Set Converter to 20 Gauge | 816720

Description

If you already run a MEC Super Sizer in another gauge, this conversion kit saves you from buying a second tool just to work with 20 gauge hulls. It swaps the business end of your Super Sizer over to 20ga so you can get back to resizing bases that feed clean in any 20 gauge chamber. The whole changeover takes about five minutes, and MEC includes the installation instructions so you are not guessing your way through it.

What the 20 Gauge Super Sizer Conversion Does

The heart of this kit is MEC's Power-Ring collet. It uses eight steel fingers that wrap around the base of the shell and squeeze with even pressure until the base is reshaped back to its original factory dimension. That matters because fired hulls, especially ones that have been run through progressive loaders that skip a resize step, can grow just enough to drag or stick when you chamber them. Run them through a properly sized Super Sizer and they drop in and feed like new. The collet handles both high and low brass shells and accepts all shotshell lengths.

Installing the Super Sizer Die Set Converter

This is a replacement collet and pad set, not a complete standalone tool. You will need an existing MEC Super Sizer to install it on. Once you have the right collet seated and the pad in place, your Super Sizer is ready to run 20 gauge. It is a smart way to keep one base tool and simply change collets as your reloading needs shift between gauges. MEC also offers these conversion sets in 10, 12, 16, 28 gauge and .410 bore, so a single Super Sizer can cover a lot of ground.

For anyone loading 20 gauge for clays, upland birds, or just stretching their hull supply, this is the most cost effective way to add the gauge to a setup you already trust.