OK, last week I was shooting the Presidio with black powder, and of course cleaned with soap n water as soon as I got home. Now, I notice the carrier block is real dirty, which tells me the brass wasn't sealing very well, correct? Today I'm breaking down the c\action for a more thorough cleaning and the block is really dirty. Scrubbing with warm water and copper brush, it's clean, but now tarnished. Question is, can I ultrasound it to get it looking new again, or perhaps wet tumble it with SS pins, or is it just going to be tarnished forever. Or is there some soap or compound to use?
Thanks,
King.