I have many berdan primed brass I have saved back. I also have a hydraulic deprimer for it as I used to reload these when I could get the primers. They were corosive so I stopped when I ran out. These days you can get priming compound and along with a punch it looks as though this would be a simpler option than reworking regular primers. I have plenty of 303 Brit, 308, and 7.62X54 brass to reload. So I will try this out over the next month or so. Just need to get some priming compound. If I run through my primer cups it should be easy to get more of them from steel cases before scrapping those.