Mec model 9000gn progressive reloader for 12 gauge shotgun.  Never used. 

All MEC reloaders incorporate features that produce shotshells that will outperform factory loads at a fraction of the price. These top-quality features include: flip-top measure to permit powder and shot containers to be inserted or removed without spillage, adjustable rammer tube for applying proper wad-column pressure, cam-operated crimp for precise crimping and closing pressure, automatic primer feed, Spindex2 crimp starter for automatic rotation and realignment on the original factory crimp.
The 9000GN delivers high-speed, high-volume reloading at its best. Features Auto-Dex™ automatic indexing that automatically moves shells through each stage smoothly and consistently. New MEC Progressive Primer Feed included. Finished shells are ejected and slide into your container where they can be boxed.