[runner]

I took my recent purchase, a 1920 stamped police commercial, to the range today. The good news is, it feed perfectly with 3 different types of repro mags. The bad news, I had a "double" from the gun. Two shots with one pull of the trigger. The gun had worked with no problems with some factory 115 gr. ammo. At the time of the double I was firing some old 115 gr. reloads that are on the mild side. Does this sound like a pistol or ammo problem? If the gun, how do I fix it. thanks Frank

 

[Guest_V]

maybe a loose side plate (locking bolt). Whatever - the possibility of it going full auto is a bit daunting. A friend had the last round graze his neck. So a good gun smith with Luger experience should definitely take a look at the weapon before it is used again.

 

[Vlim]

Hi runner,

Also have the sear bar and firing pin checked out. The firing pin extention on the left side should catch behind the sear bar every time. A likely cause is also a fouled or over-oiled trigger connector bar (the L-shaped thing in the side plate). Have had a full-auto launch in my 1906 Dutch after a good cleaning, a fellow shooter had the same little mishap after cleaning his 1941 P08.

A 2-round incident can usually be fixed by exchanging firing pins and/or sear bars. Replaced the original non-vented pin in my 1906 by a later VoPo-surplus one for shooting purposes. This VoPo surplus one didn't catch behind the sear bar once in a while, causing 2-round incidents. I swapped it for another firing pin, which cured the problem.

Also, weaker rounds may prevent the firing pin from catching correctly behind the sear bar, again causing multiple-round discharges.