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Brand New P320c Failure To Eject Issues

This is a discussion on Brand New P320c Failure To Eject Issues within the P250 & P320 Modular Pistols forums, part of the SIG Sauer Pistols category; Originally Posted by creepyrat Some quick photos i snapped yrsterday at the range and 2 of the cases i saved from the failures. I love ...


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P250 & P320 Modular Pistols P250, P320, and Exchange kits

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Old 10-27-2016, 02:40 AM   #16
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Quote:
Originally Posted by creepyrat View Post
Some quick photos i snapped yrsterday at the range and 2 of the cases i saved from the failures.

I love the gun. It is accurate, feels good in the hand and the trigger is nice. I hope to have things sorted out. My intention was to use this a my new carry piece and to later attach a suppressor for some more fun times.
Your extractor is not engaging the cartridge rim sufficiently to maintain a grip if the retreating case hits the top round in the mag as it goes back and the barrel drops as it unlocks. The case bounces up slightly, allowing the extractor jump free of the rim when it should actually begin engaging more. If you look at the case head, you can see the mark where the extractor has gone past the rim as the slide continued to cycle.

The cycle continues normally, the slide strips the top round from the mag and continues to feed until it jams up against the partially extracted case.

I had a similar problem with my P250C in 45 when I first got it. A trip to SIG got an extractor with more initial "bite" and the problem disappeared.

Here are what some of my cases looked like:


This was my intial extractor engagement before:


And after SIG replaced the extractor:
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Last edited by exfed2002; 10-27-2016 at 03:20 AM.
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Old 10-27-2016, 03:36 AM   #17
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Originally Posted by Morbidly View Post
If you have plenty of snap caps, load up a magazine and set up your camera phone. Focus on keeping your gun in the exact same position and manually cycle the magazine. Go back to your phone and see if all the rounds ejected and landed in the same area. If they don't and are all over the place, then you probably have an ejector issue. If they do, then try a higher grain load and see if you have the same FTE problem. Could just be a tight recoil spring that needs some good ammo run through it for a couple hundred rounds.
I did this test last night. It appears that all of the caps ended up ejecting consistently.

I have decided to re-clean, re-lube and rack the slide in the safe for the next couple days. I have a range date on Saturday and I will be able to give it a more thorough workout.

Thanks for all the comments everyone!
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Old 10-28-2016, 05:35 PM   #18
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My cases look like your cases. I hope the turn around is quick. I can't wait to shoot my 320 more it has been nagging at me the past 3 days. On the bright side it made it to them and is in line to be checked out.

Quote:
Originally Posted by exfed2002 View Post
Your extractor is not engaging the cartridge rim sufficiently to maintain a grip if the retreating case hits the top round in the mag as it goes back and the barrel drops as it unlocks. The case bounces up slightly, allowing the extractor jump free of the rim when it should actually begin engaging more. If you look at the case head, you can see the mark where the extractor has gone past the rim as the slide continued to cycle.

The cycle continues normally, the slide strips the top round from the mag and continues to feed until it jams up against the partially extracted case.

I had a similar problem with my P250C in 45 when I first got it. A trip to SIG got an extractor with more initial "bite" and the problem disappeared.

Here are what some of my cases looked like:


This was my intial extractor engagement before:


And after SIG replaced the extractor:
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Old 10-28-2016, 05:54 PM   #19
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Originally Posted by DPeter85 View Post
I did this test last night. It appears that all of the caps ended up ejecting consistently.

I have decided to re-clean, re-lube and rack the slide in the safe for the next couple days. I have a range date on Saturday and I will be able to give it a more thorough workout.

Thanks for all the comments everyone!
Let is know how it goes. To me, your problem seems like more of a recoil spring issue, being that it's just too strong right now. If on Saturday it's still posing a problem, call SIG customer service.
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Old 10-30-2016, 04:19 AM   #20
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Let is know how it goes. To me, your problem seems like more of a recoil spring issue, being that it's just too strong right now. If on Saturday it's still posing a problem, call SIG customer service.
150+ flawless rounds through the P320 yesterday. It felt great! I am becoming more and more impressed with this thing. Its so well engineered!!
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Old 10-30-2016, 05:25 AM   #21
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Could be the shooter

Might be that she is a little smaller and is limp wristing it, had that issue with one of the smaller women at my LGS shooting my Legion, I'd shoot BANG BANG BANG, she would shoot, BANG BANG CLUNK

Just food for thought
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Old 10-30-2016, 12:59 PM   #22
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Originally Posted by DPeter85 View Post
150+ flawless rounds through the P320 yesterday. It felt great! I am becoming more and more impressed with this thing. Its so well engineered!!
Good to know..took my p320 carry to the range today and put about 100 rounds through it for the first time..ran like a champ with no problems and is the most accurate pistol I have ever shot..
Next time out plan on at least 500 rounds through it to really test it out but so far everything seems to be great.
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Old 11-01-2016, 08:39 PM   #23
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Originally Posted by rscalzo View Post
Stay away from it. [Referring to TW25B lubricant] Use something similar to the EWL.
What have you learned about TW25B that caused you to to warn against its use?

I've used TW25B grease exclusively on all five of my slide operated semi-autos. They have 22,000 rounds between them, and none shows any unusual wear. However, I'm not wedded to TW25B, so if there's a problem, those of us who use it would like to know.
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Old 11-02-2016, 05:51 AM   #24
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Originally Posted by rscalzo View Post
Grease works its way into the striker assembly and locks them up The only lube used in their own shop is the standard weight EWL.

The TW25 tends to also break down into a liquid and solid.
Is the ewl you are speaking of the same as slip 2000 EWG(grease) or an oil.
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Old 11-02-2016, 05:52 AM   #25
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Is the ewl you are speaking of the same as slip 2000 EWG(grease) or an oil.
Sorry.Never mind I found the answer. They make an oil also.
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Old 11-02-2016, 08:33 AM   #26
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Grease works its way into the striker assembly and locks them up The only lube used in their own shop is the standard weight EWL.

The TW25 tends to also break down into a liquid and solid.
Thanks for the info. I'll definitely try the Slip EWL. And you're right about the liquid-solid aspect of TW25B. I'm getting tired of never knowing which I'll get when I push the plunger.
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Old 11-07-2016, 04:21 PM   #27
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Recieved mine back today, replaced the extractor, extractor spring amd test fired 50 rou ds of speet lawman 115 tmj wih no failures. I am going to vote then hit the range to test it out.
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Old 11-07-2016, 05:32 PM   #28
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Man....I feel that I was lucky to get one without extractor issues last year. Nearly 5,000 rounds of various makes/profiles through my P320C without a single malfunction or hiccup of any kind. Thankfully, from the looks of things, it seems to be a run of extractors.

I use a thin layer of EWG on rails and bearing surfaces of barrel. The CLP that I flush out the FCU and bore with while cleaning takes care of the rest.

Last edited by MoRivera; 11-07-2016 at 05:34 PM.
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Old 11-08-2016, 05:43 AM   #29
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I was excited to get to the range and test fire my gun, this is what it greeted me with. Never had problems with this ammo in my other 9mm's. I guess I'll have some of my instructor friends shoot it now and see if its ammo or gun. I'm to ****** off to take the time. This gun is going down the road.
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Old 11-08-2016, 06:01 AM   #30
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Originally Posted by creepyrat View Post
I was excited to get to the range and test fire my gun, this is what it greeted me with. Never had problems with this ammo in my other 9mm's. I guess I'll have some of my instructor friends shoot it now and see if its ammo or gun. I'm to ****** off to take the time. This gun is going down the road.
Try doing what the OP did. Lock the slide back and store it for a couple nights. I really think it's your recoil spring. It may just be too tight right now. I've had to do the same thing for a couple pistols before as well.
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