*A little water in your corn cob or walnut cleaning media cures the static cling and walnut dusting. Try half an ounce of water per quart or liter of media for a start, and another half ounce if it's still clinging. Don't overdo it, and don't add water if the cases are in. Let your tumbler or vibrator run for 5 - 10 minutes before you add cases, or you'll have a wet glob inside a case. I got this tip from a Mic McPherson article.
Bye
Jack

Another cure for static is to cut one of those dryer sheets in quarters and use one quarter each time you clean brass.  They pick up a lot of dirt, too.  Ed