With several MEC's in the reloading room. The 410 single stage, 600 Mk V, is a great unit. Granted, since it's a single stage, not near as fast as the progressives, it's still a great unit. I use 410 powder for almost all of the 1/2 ounce loads. It's such a good unit, that we paid for it by the savings in a single Summer of "the kids" shooting skeet in the back field. We (I) won't ever sell it.