Originally Posted by ChuckBen
I was sorting some range brass and in my inspection process I found about 20 brass cartridges that had "FNM 92-1" on the headstamp. They measured the same as 9 mm Luger. On the inside center was a dimple in the center with two smaller holes adjacent to the center dimple. Is this a Berdan primer? Can I deprime and prime these cartridges with my Lees dies?
Yes it is berdan primed.
No, you can't decap it with regular dies.
Not worth the trouble for everyday brass.