Author Topic: Failure to feed  (Read 2131 times)

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Offline safecz

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Failure to feed
« on: July 28, 2015, 06:00:56 AM »
      I have a new CZ75 P-01 compact with about 700 rounds fired. It has been having failure-to-feed issues from the get-go (two during the first 50 rds) and some stove piping, too. I've seen rounds stuck parallel to the feed ramp, assorted angles from maybe 30 degrees up to approx 45,as well as being anywhere from 1/4 to 1/2" away from being properly seated in the chamber. All seem to have the bullet touching the top of the chamber. Some show  an angled dent on the tip of the bullet, probably from its initial collision with the feed ramp or maybe from hitting the top of the firing chamber. (I'll have to be careful extracting the next failed rounds, to note if the dent is on top or below). I've considered that it might have been a break-in issue, or operator error, as I'm new to CZs. A gunsmith said that mine might have been one of the "C-", baddayontheassemblyline guns, and that it needed a trigger job and work on the ejector. Now fresh out of "rehab", failure-to-feed is still occurring 10% of the time, and from any of three mags,   (assorted ammo, including factory Blazer Brass and Remington, and high-quality reloads from a trusted source(all measured within specs after being removed from their stuck position)). All rounds easily slip into the barrel when it is removed from the slide.
        I doubt that limp-wristing is involved. I was government trained, have about 7500 rds experience, mostly 40cal and 9mm, mostly H & K and Walther.
I am hoping for some ideas or insight while I wait for the gunsmith to return from vacation.
        Thanks for your thoughts.

Offline rodolfo

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Re: Failure to feed
« Reply #1 on: July 28, 2015, 08:26:37 AM »
I had a problem where the slide stopped with the cartridge half way into the chamber.  It turned out to be the extractor.  Take the slide off of the gun and remove the barrel.  Then try inserting a cartridge under the extractor against the breech.  Like when a cartridge normally feeds into battery.  The groove in the base of the case should slip under the extractor as you slide the head of the case against the face of the breech.  My gun required the corner of the extractor to be rounded for a smooth insertion. 
CZ-83 380ACP
CZ-75 c 9mm
CZ-97 BD 45ACP
CZ SP-01 9mm

Offline safecz

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Re: Failure to feed
« Reply #2 on: July 28, 2015, 11:31:56 PM »
Thanks. I'll check that.

Offline spiffytexan

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Re: Failure to feed
« Reply #3 on: August 05, 2015, 07:01:59 PM »
I was having feeding issues with my PCR of the box. The chamber edges were out of spec and it was  messing up my brass and  causing jamming .  I tried polishing it but there was no change. Sent it off to cz and they gunsmithed the barrel into spec and it came back and has shot reliably for 100 rounds or so so far.

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Offline safecz

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Re: Failure to feed
« Reply #4 on: August 07, 2015, 03:18:04 PM »
Thanks for the input. I just got the gun back from the "smithy" and its worked perfectly for a hundred rounds so far. He said that the ejector was a little loose and in need of reshaping. He also smoothed and polished all surfaces and edges at the chamber end of the barrel.

Offline rodolfo

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Re: Failure to feed
« Reply #5 on: August 07, 2015, 05:28:43 PM »
Thanks for the input. I just got the gun back from the "smithy"  He said that the ejector was a little loose and in need of reshaping.
Did he say the ejector or the extractor?  It is hard for me to see how the ejector affects chambering. 
CZ-83 380ACP
CZ-75 c 9mm
CZ-97 BD 45ACP
CZ SP-01 9mm