Yesterday I switched my Lee LoadMaster press from 223 to 9MM. After I got it all setup, I ran 239 rounds and things went pretty smooth.
The case feeding isn't working good enough on 223 but works great on 9MM. I plan to try some modifications to feed the 223 cases better.
I already had the brass primed and ready to go so my setup was station 1 - size, 2 - expander, 3 - powder, 4 - bullet seat, 5 - crimp.
I was planning to use the Lee auto-disk pro powder measure for the 9MM but I need the part to use pistol cases to activate the case activated powder drop, so I robbed the Hornandy Lock N load powder measure off of the 223 setup.
It ran so well, I ran until I was out of the bullets (Winchester 115 grain JHP) I set it up for.
It seems that the Lee LoadMaster works better with 9MM than it does the 223, mostly because of case feeding. Previously I had powder spill problems with223 but that seems to be solved by using finer powders, the long extruded grains would bridge the neck sometimes. So I'm basically putting a bullet on each case and pulling the handle, 1 loaded round per handle pull, I like it, but there is a lot more to keep an eye on though.