I have a tip on cleaning 20 to 30 pieces of brasses at a time. For me when I reload 45/70 brass I like to use a sonic cleaner. what I do is put the 20 to 30 pieces inside a pickle or mason jar. I fill the jar with the cleaning solution just enough to cover the brass all the way. I than place the jar inside the sonic cleaner and than fill the sonic cleaner with water to the amount prescribed on the reservoir. By doing this I only use a small amount of the cleaner and save money by not having to fill the reservoir with the cleaning solution.