I think the wet tumbling/time consuming argument comes from the tiny volumes some can do.
The first one I built was using a 100lb (12.7gallon) chlorine bucket, it could clean around 3000, really grungy (wouldn’t have put them in my corncob tumbler) 45 acp cases at once and after laid out in the sun would be dry in 2.5 beers. Efficient, even if more labor by me to do it.
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Some years later, I built some really big wet tumblers for a remanufacturer.
The cleaned 15 gallons of brass, per barrel at one time! I built 6 of them a gantry crane so they could load and unload them.
After they loaded the rounds, they post load tumbled them with a bank of dry tumblers.
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I built this media separator to roll down the isle.
This was before a tray was added to the bottom.