Members,
I haven't been on site much lately due to medical issues, lost interest for a while, more worried about living.
I've been using SS Pins since 2009 and its the only way to clean dirty brass for me, My setup allows me to run 4 separate Model B barrels at once turning about 60 rpm.
Edit: My brass dryer has an air flow that will float 9mm and 40S&W brass out of a 5 gallon bucket. A perforated lid and a timer limits the process, more time in the Summer due to higher humidity.
I still use 3 vibratory tumblers but mainly to clean and polish live ammo. My media is very small and treated with Nu-Finish car polish. Using a vibratory prevents any possibility of any accidental discharge of ammo IF a near full level of media is used. Don't touch any after tumbling without gloves on. Tumble in a large beach towel and let cure in open air, then bag and seal in an ammo can after labeling bag.
For pins, I use 0.020"dia X 0.236"long (0.5X6mm). For best results, deprime brass. I tumble overnight out in my garage which results in longer tumbling times and VERY CLEAN brass. The pins are so light, no work-hardening can occur. Brass cases banging against each other would do more damage. But we all have bags of brass laying around and we never consider any damage occurring that way. The SS Pin processing cleans the brass very clean and pistol/revolver brass may be "too clean" which causes stiction to occur on progressive presses. Some re-tumble in lizard-litter for 1/2 hour to "dirty up" the brass to reduce stiction, I don't.
Any way, I'm back - won't post often - still type with one finger - and still loving my reloading hobby, going on 44 years now for this hobby.