Corn cob media and polish wont return it to its original luster.
So, I bought an ultrasonic cleaner and specially formulated brass cleaning solution hoping it would remove the black tarnish.
It didn't.
Is there anything that will work? I like to pick up old range brass, but I hate the dark cases. I guess the only thing left to try is stainless steel pins in a wet solution.
Oh, by the way, I am fully aware of the fact that discolored brass shoots/works just as good as shiny brass does, so there is no reason to remind me.
I just like shiny brass. I figure if I'm gonna go through the trouble of reloading it, I might as well do the best I can.