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Message: <blockquote data-quote="Blitzfike" data-source="post: 2404240" data-attributes="member: 807">Removing berdan primers is not difficult, but is messy with my method. I have a Lee sizing die with the decapping pin ground off. I size the case, then remove it and fill it with water. I then re-insert it into the sizing die, the expander portion of the old decapping stem fits tightly into the sized neck and with just a small effort, the primer pops out. I use an old RCBS Jr. press for this and have to remove the water and re lube the press after every session. I also do this at an outdoor bench so I don't have to worry about water getting on my other equipment. I keep this die set dedicated for the berdan stuff. Just be sure to flush the die well with a water displacing oil after each session.added note. After exposing cases to water, I dunk them in a metal prep solution like used in the auto body industry. It puts an oxide coating on the steel similar to what it originally had and resists rust.</blockquote>