I have stuck yet another case in my 223 small base dies. I do range brass and long time ago just decapped with the sizing die now I deprime with a die and tumble before it goes in the full length sizer. Cleaning with a shotgun mop and carb cleaner has not helped. If I was to ultra sonic clean it, what would be the right chemicals to use and how long to run? Daughter gave me the cleaner and I have never used it, it was in the house she moved into and came with no instructions.