I came across what I believe is a pre 1982 MEC 600 jr reloading press that is complete and set up to reload 12 gage. Never loaded shot shells, but for $25 I just couldn’t pass this up. However, I have more 12 gage shells around than I will shoot anytime soon. I would like to load some light 16 gage loads to shoot in a 16 gage SxS, so does anyone have a set of all the parts to change this over to 16 gage they would part with? I could also use some data. The bar is marked 12 ga O-H, if someone could enlighten me on that also.