I currently fry tumble everything in walnut. I tried shines ss chips from Facebook with soap and water. What a mess.
I’m curious about SS pins and have seen that the really clean the brass and pockets.
I use a thumblers tumbler that is the 12# model. The drum is about 3/4 the size of a milk gallon jug.
how much of those pins will I need? A 5# bag is about 1-1/2 cups and they are expensive. I can’t picture 5# rolling around with 250 PCs of brass and being very effective.
Ive used the pins from STM for 8 years now. Never had an issue with getting them stuck in the flash holes, and very rarely do I have one stuck in a case, and thats only on 223 and 6mm sized case mouths. I also tumble the brass and pins out in a Dillon media separator using water which helps a bunch.
https://stainlesstumblingmedia.com/shop/reloading-products/media.html
Something worth mentioning though is that if you dont care about the inside of the cases or the flash holes being perfectly clean, dont use media. Ive found it gets the cases "good enough" and still gets them more than clean enough to use. I dont use media with pistol brass, but do with rifle post trim to deburr everything.