Curious, I've only been bpcr shooting for about 2 years . I'm kind of tired of coming home from range and having to brush-out 40 to 60 Rounds of 45/70 or 45/90 pcs. Of brass when I get home . Can dirty bp. cases be put right in a tumbler with steel pins after decaping  , and what kind of solutions are used ? 2nd what is the best way to separate pins from brass when casings are wet. I would think those little pins would like to stick to the inside of wet casings . before purchasing a tumbler with pins some kind of advise would be great , since I have only used vibratory  cleaners .
Thank you 

Silver

Many of us BP shooters use a Thumblers Tumbler Model B (google it). While considerably more than the Chinese tumblers, they are made in the USA and will last a life-time. Some prefer the slow speed motor, I've not noticed any difference in cleaning ability between the slow or high speed motors, having used both. Would say the majority use ceramic media rather than the pins, but both work well. Dave Maurers solution is much more than 'soap' and does an excellent job. However, I still have 5# of lapidary polishing compound and a couple of pounds of Lemon Shine to use up before getting more of Dave's. I use a cap of Dawn with the two powders and tumble for about an hour. Also use a 5gal pail and colander. Use an old t-shirt stretched over the colander to catch the media. Can tumble ~120 cases at a time. Rinse with hot water and dry in the convection oven, though most use a test-tube drying rack.

Its another of those "whatever works for you" things on the method and cleaning mixture. Many ways to skin this cat.

I use a rotary tumbler also, and a rotary sifter to separate brass from media. You can find Frankford Arsenal sifters for under $20.

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After I tumble with steel pins, I decant the whole contents of the tumbler into a good-sized bowl of water.  Pick out the cases one at a time, give them a shake while under water, and no pins will stick inside in the case.  Slower than using those sifters, but sure.  Most of my cases are small and tight bottlenecked, such as 2R Lovell and K-Hornet, much more prone to have pins stay inside.