I'm getting my old 650 setup again, it's been a few years since I've used it.
I have a .223 carbide resize die in station 1, adjusted all the way down to the shell plate. The expander ball/decap pin is not installed. When I run a piece through the press, it comes out with a "mini shoulder" immediatly above the shoulder, on the neck.
I don't think it's normal, but I don't know what's wrong. You can see it in the pic. It doesn't look like much, but you can sure feel it.