I have a gang of brass to process. I have a FART so I like to deprime before I tumble. I bought a Lee Universal depriming die which I hate. The friction lock keeps popping loose and the pin has to be retightened.
I looked around the web and I found a place (Mighty Armory) that makes a fancy universal depriming die , I looked at reviews on youtube and some other sites and it seemed pretty positive. I sent the store owner an email asking which one of his dies he recommended for a 550B. He quickly responded and recommended the Shorty Bull die. The die comes with two removable hardened steel pins and I ordered an extra shaft and a small pin decapper.
I got it in the mail earlier today and put it in my spare toolhead and cranked through a 3 gallon bucket of .38 Special brass. So far it is working really well.