Dillion media separator. I spin them around for about a minute. I wait a few minutes and spin them again. I move the cases, by hand, to a towel for drying. Once dry, I move the to a box for storage, by hand. Moving by hand agitates the cases and allows more of the pins to fall out of the cases.
Dumping from one location to the next allows lose pins to fall back into cases.
I find the the pins fall more freely when the cases are dry.