Muley, you can't use a sizer on REAL bullets. The REALs have rings that increase in size (diameter) as they get closer to the point. Running them through a sizer would make them useless.
But, come to think of it, that is a great question. I just wonder how Hornady's One Shot would work? It is used for lubing cases for resizing. It has a liquid carrier that evaporates and leaves a dry film on the cases that will not contaminate powder or primers. I don't see why it wouldn't work as a bullet lube.