I purchased a Mec Jr 600 at an auction today for $20. I've been a rifle and pistol reloader for years, but I've never done any shotshell reloading. I probably shoot 4 boxes total per year, so it's just not worth it to me. However, at this price I decided to pick it up. Thy advertised it as for a 16 gauge, although I don't really see any markings on it other than on one of the "die" parts. It says 721-16. Does this look like a 16 gauge version? I know the photos I got are pretty lousy, but does it look complete? Anything else I need to buy? Anything that I need to know about using it, or any advice on how to use it safely? Where is the best place for shotshell reloading data? I probably should have bought the 12 gauge version as well, but it went for a bit more.