For those worried about pins stuck in brass. The pins are steel and the brass isn't...
Attachment 82839
Depends on your setup, but using a media separator like @
Flamingo posted, then take a strong magnet and wave it over your brass. In theory you could "suck up" any cases with pins in them. You'd have to experiment with how strong and close the magnet needs to be. You could also just setup a magnet on your bench and invert your cases as you put them into a case feeder or dryer, or do any other processing with them.