I use the crushed walnut coarse size, & add a capful or 2 every now & then. After manyMany rounds I toss it out in the driveway potholes.
25# box I got nearly 20 years ago finally grew exhausted. I found RCBS had some kind of special brass cleaner with a bit of powdered ceramic in it.
Mostly my usual run of turbo clean is 15-30 minutes.
Over the years I abandoned a wide range of experimental stuff.
Never did care for the corn cob route. Didn't like a number of other suggestions either.
Anything with jewelers rouge caused problems I didn't like.
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Dum vivimus Vivamas
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