I have a tumbler which has done sterling service. I also have a small ultrasonic cleaner. Both tend to be used when preparing cases. I've been told that if I used stainless steel pins instead of the normal media in the tumbler that I would get better results - as no matter what I seem to try the inside of the cases and the primer pocket always seem to be grubby.
Has anyone got experience of the stainless pins ? and more importantly, are they worth the money ?