What do you guys use to clean your dies and how often? I'm looking to buy a cleaner and a neck lubricant for a RCBS 400 corbon steel sizing die I just bought. This die is different from my lee sizer(has an expander plug) and the case necks need to be lubed on the inside. I've already polished the expander but it still pulls on the neck a little too much and is changing the headspacing. I've been using lee resizing lubricant but I'm not sure what to clean it with.