I can vouch for Lemishine giving brass splotches of reddish colors (10% of surface area or less), if I add more than a tiny amount. But some really helps shine the brass. I use a smaller ultrasonic cleaner. It can handle 50-70 larger cases, like 500BPE or 450BPE. I typically rinse cases after shooting with black powder and run them thru a few 4 minute cycles, replacing the water every 3 cycles. I deprime after the initial runs and clean again in the ultrasonic to get the primer pockets clean. All told it's probably 20-24 minutes in the cleaner with a least one water change. Hot water helps.
