BC's right about RCBS dies and the expander plug. You better lube 'em, or you're gonna stick one before long. Been there, done that. A little lube keeps my mouth cleaner.

Since I didn't lube the cases that I ran through the resizing die last night should I lube them up and run them through the sizer again?

Tom

Nope, just go and fire em. then they will be fireformed. If you ever get a batch of brass that you may have crooked the necks or something, resizing rarely helps gettin them back.