layusn1 - You don't include a link in the post. Are you talking about the Ammo Brass Traders forum in your signature? I didn't register yet to see if it has more than a forum.
50 Shooter - that is a good site, indeed. However, it failed me when I went looking for the one headstamp I was curious about. Someone had asked about *I* in a different thread. That one and *-* (Starline) aren't listed. There's lots of other users of Starline brass in the list, but not their original headstamp!