Amazing the difference a short spin against steel wool will do for case necks!
We do our case prep on a RCBS universal case prep center. My old man bastardized a 1/4” electric drill extension to be threaded for the prep center on one side and epoxied a earth magnet in the other end that accepts the collets to the LEE zip trim. Lock a case in and give it about a 10 second spin using a chunk of “Lead remover” cloth and they look factory new
