garagegunmaker
Expert
Looking for opinions on this…
Just picked up a pps-43c new. Had some polish surplus ammo I had planned to run in it, 53 headstamp date.
Loaded up a mag and fired, first three rounds with no issues at all. Then on round four just a click, with the slightest hint of a mark on the primer. I know the surplus polish ammo is known for hard primers so I was not surprised.
Tried to extract the round and found the the extractor would not grab the case, so used the tip of my knife to get it out.
Tried a new round and same problem…10 new round in a row and not a single fire, and almost no mark on the primer.
At that point I was getting fed up with pulling rounds out with the knife, and figured I would rule out ammo. Fired all 10 round that had not gone off thru a cz-52, all 10 fired in the first strike.
I was Assuming maybe defective or broken firing pin on the Pps at that point. Took it apart and didn’t see anything wrong with it, except seeming slightly short. Have read they were designed with commercial ammo in mind and not piercing primers though.
Figured I would try some new commercial ammo next to see if it functioned with that, and sure enough it fired 10 round no problem.
Still had the same issue when I went to unload that the extractor would not grab the case.
Figured I would make an extra firing pin a few thousandths longer and swap it in then shooting surplus, and problem solved…till I noticed the spent casings from the commercial ammo.
They look very stretched and neck misshaped. Almost like the chamber is cut to deep or incorrectly? Got me thinking about the extraction problem, which could be related to chamber depth.
Also could that be causing the issues with the surplus ammo not getting enough hit from the firing pin, but then why did the first 3 rounds fire with no issues?
Sorry for the long post, just looking for others opinions on this. Hate to send back a new gun for warranty work, especially if it’s something simple I could fix myself.
Here is a picture of the fired brass next to the same ammo unfired.
Any thoughts are appreciated, thanks!
Just picked up a pps-43c new. Had some polish surplus ammo I had planned to run in it, 53 headstamp date.
Loaded up a mag and fired, first three rounds with no issues at all. Then on round four just a click, with the slightest hint of a mark on the primer. I know the surplus polish ammo is known for hard primers so I was not surprised.
Tried to extract the round and found the the extractor would not grab the case, so used the tip of my knife to get it out.
Tried a new round and same problem…10 new round in a row and not a single fire, and almost no mark on the primer.
At that point I was getting fed up with pulling rounds out with the knife, and figured I would rule out ammo. Fired all 10 round that had not gone off thru a cz-52, all 10 fired in the first strike.
I was Assuming maybe defective or broken firing pin on the Pps at that point. Took it apart and didn’t see anything wrong with it, except seeming slightly short. Have read they were designed with commercial ammo in mind and not piercing primers though.
Figured I would try some new commercial ammo next to see if it functioned with that, and sure enough it fired 10 round no problem.
Still had the same issue when I went to unload that the extractor would not grab the case.
Figured I would make an extra firing pin a few thousandths longer and swap it in then shooting surplus, and problem solved…till I noticed the spent casings from the commercial ammo.
They look very stretched and neck misshaped. Almost like the chamber is cut to deep or incorrectly? Got me thinking about the extraction problem, which could be related to chamber depth.
Also could that be causing the issues with the surplus ammo not getting enough hit from the firing pin, but then why did the first 3 rounds fire with no issues?
Sorry for the long post, just looking for others opinions on this. Hate to send back a new gun for warranty work, especially if it’s something simple I could fix myself.
Here is a picture of the fired brass next to the same ammo unfired.
Any thoughts are appreciated, thanks!