Cz 83 .380 Failure To Feed

[LusoDragoon]

Took some of my guns to the range today.

Bersa .380 - No problems with ammo (CCI Lawman & Remington JHP 88gr.)

1979 Bulgarian Makarov - No problems with ammo (50 Federal FMJ  & 50 S&B FMJ). Suprisingly acurate @ 10 feet and pretty close to the CZ83 accuracy.


Cz 83 - (50 PMC FMJ & 40 CCI Lawman & Win JHP 85gr)

Win JHP 85gr - Had a FTF with a 10 round magazine loaded to capacity. It happened on the last two rounds. Loaded only 8 rounds and no more FTFs for the remainder 40 rounds.

PMC FMJ &  CCI Lawman - Had FTF  with every single magazine regardless of whether they were loaded with 8 or 10 rounds.  It always happened on the last two rounds.

Any ideas on what is going on?

[KingPolymer-III]

I have never had a problem with my CZ83s feeding.  This is very strange.

[LusoDragoon]

I was able to reproduce the problem with snap caps.




Once it failed to feed but the slide was almost closed. When I pressed the trigger and nothing happened, I thought it was a dud.  I removed the magazine (it was empty), turned the gun sideways on its axis (ejection port facing up), pulled the slide but  no round was ejected. To my surprise there were two rounds stuck inside.

BTW: and a separate issue. the factory recoil spring has a "gripper coil" or both ends have the same diameter?

[KingPolymer-III]

I have thought about this and really don't know, its the first time I have encountered a problem like this.  Perhaps you need to send it back to CZ. ?  I am waiting to see what others will say.

[LusoDragoon]

Cleaned the mags. Bought different ammo (Independence & Winchester & CCI/Speer Gold Dot). I will give it another try on Wednesday, before calling CZ (or the dealer that sold it to me).

[Dos]

Is there someone with another magazine you could borrow to possibly eliminate the mags as the culprit?  The last two loaded rounds malfunctioning sounds suspicious.

[Walt-Sherrill]

It may be, too, that you recoil spring is getting weak from use, and no longer has the ooomph needed to close the slide.


How old/many rounds on your recoil spring?

[LusoDragoon]

Quote:How old/many rounds on your recoil spring?

The gun is NIB. Total of +-130 rounds fired  (40 rounds win 85gr HP, 50 PMC, 40 Speer Lawman).

[KingPolymer-III]

One of my 83's has at least 10,000 rounds through it and has the original spring, so its an exceptionally well built gun.  Whatever the cause, don't worry, it will be resolved, either by CZ or by you.

[Dos]

I'm not sure if I fully understand your photo demo so bear with me.....

Your reproduction photo, with snap caps, appears to show the slide back and an unextracted spent round.  If that's been the case, it is possible for the next round to slam into it and glance off above and to the rearward side of the partially unextracted spent case.  Most of the time, the fired round will stovepipe sideways as the extractor prematurely turns it loose and the next round slams into it, but I have also seen them lodge off to the side many times in other autos.  In this scenario you are looking at an extraction problem.

If you are trying to show a live round that will not chamber, then your feed ramp may be in need of polishing and or as Walt indicated the recoil spring could be undersprung.   You can check the bullets for nicks or gouges when you chamber them manually  This will indicate any feed ramp binding problem. This is all premature speculation and we need to take it one step at a time.  Keep reporting and I'm sure it will get resolved

[LusoDragoon]

Quote:Your reproduction photo, with snap caps, appears to show the slide back and an unextracted spent round.

The photo is not a reenactment .     It happened during "cycling". After I started this thread, I decided to cycle "snap caps" to see what would happen. On my first "cycling" it happened.  It is actually a failure to feed rather than a failure to extract. The "spent" snap cap extracted fine. What you see is a "snap cap" not chambering because the other round still partially in the magazine is pushing it up.

During the shooting session the round never got anyway inside the chamber. It would get stuck between the round in the mag and the top of the slide.

Something like this only the slide is not fully back and the round is positioned on a more pronounced angle.



I will take my digital to the range coming Wednesday just in case. Hopefully, I will not need to document anything.

[KingPolymer-III]

I am stumped.

[Dos]

OK then, it's possible that the mag lips are too loose allowing the next round to fly up too quickly misaligning the chambering round.

Also with a full mag there is more tension on the rounds, holding them more firmly against the top of the mag.   It stands to reason then, that when you get down to the last two rounds there is less spring tension holding them firmly against top of mag and they are flying up too fast and causing FTF.      HTH

[LusoDragoon]

I'll will post again on Wed. Hopefully, it is just a new gun thing ...

[KingPolymer-III]

Please let us know because the curiousity is killing me.