Which car wash and wax do you use? Is it an all in one product or a separate soap and wax? I've used Nufinish in my dry tumbler but have always used the frankford wash stuff in my wet tumbler just because I haven't ran out of it yet.
I bought a jug of Turtle Wax brand all in one wash/wax liquid, works on my truck too!! Cap full, doesnt suds up quite like Dawn but cuts the grime and just smooth brass. No build up gunk on brass. Slides through dies too (9mm/40).