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The MEC Sizemaster has earned its reputation as one of the most trusted single-stage shotshell presses on the market, and this version is dialed in specifically for .410 bore 3-inch shells. It's a steel-framed machine built to take years of use, pairing simple, repeatable operation with the kind of precision that keeps your hulls loading right every single time. If you've been shooting a lot of .410 and tired of chasing factory ammo, this is the press that lets you take over the job yourself.
The heart of the Sizemaster is the "Power Ring" collet resizer, which brings every base back to factory specifications. It handles both brass and steel heads, high or low base, so you're not fighting with mixed hulls. The resizing happens as a full-circle squeeze rather than a partial sizing, which is a big part of why these presses crank out such consistent shells. The Spindex crimp starter swivels to line up with the original creases in your hull, giving you a clean, factory-looking crimp on the finish.
This is a single-stage press, meaning you move the shell station by station as you work, which gives you full control over every step. It's a fantastic setup for anyone learning the ropes, and plenty of veteran loaders stick with the Sizemaster for exactly that reason. Expect to load somewhere in the neighborhood of 4 to 6 boxes an hour once you get your rhythm down. Keep in mind the .410 Sizemaster does not use the E-Z Prime automatic primer feed found on the larger gauges, so priming is done by hand.
This model comes factory-set for 3-inch shells and can be adjusted down to 2 1/2-inch when you want to switch loads. It ships with a 11/16 oz charge bar and three powder bushings (10, 11, and 12) to get you started, and additional bushings and charge bars are easy to find if you want to fine-tune your recipes. A little grease on the resizer now and then keeps everything gliding smoothly through long sessions at the bench.
No, the .410 bore Sizemaster does not include the E-Z Prime automatic primer feed that comes standard on the larger gauge models. Priming on this press is handled manually. Everything else, including the Power Ring collet resizer and Spindex crimp starter, works the same as the other gauges.
Yes. The press comes factory-set for 3-inch shells, but it adjusts to handle 2 1/2-inch hulls as well. This makes it a flexible option if you shoot both shell lengths and want one press to cover them.
This model ships with a 11/16 oz charge bar and three powder bushings sized 10, 11, and 12. If your loads call for different measurements, MEC offers a wide range of additional bushings and charge bars that swap in easily. Weighing your charges on a scale first is the best way to confirm you're dropping the right amount.
It's a solid choice for beginners and experienced loaders alike. The single-stage design walks you through each step one at a time, which makes it easy to learn and gives you full control over your loads. A light coat of grease on the resizer keeps it running smoothly session after session.
| UPC | 098489018487 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 81204103 |
| Caliber/Gauge | .410 Bore |
| Length | 22.2500 |
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