Have a very nice one. Appears unissued. Light strikes with all ammo tried including Wolf Brass (prvi made), Romanian milsurp and some misc ammo I have laying around. Will fire, but often requires 2 hits. Not a lockup or headspace issue. I suspect weak hammer spring. I remember sometime back, finding a method for beefing up the hammer spring with a couple of small washers as shims. Anybody have a link or can give a tutorial on this process?
Well personally i would replace the firing pin as they are known to be brittle. I have a pistol that had some problems with Polish surplus, and after cleaning and replacing the firing pin I haven't had an issue with it.
I have found the forum post in regards to the shimming method, but as I said before my opinion is to replace the pin. They get deformed or break off at the tip and this would cause problems.http://forums.gunboards.com/showthread. ... 52-problem
Hope this helps!