Author Topic: I have a head scratcher with my Canik C-100.  (Read 11725 times)

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Offline Rmach

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I have a head scratcher with my Canik C-100.
« on: September 16, 2020, 07:59:27 PM »
Last week, I took the C100 to the range and ran 150rds of 124gr Speer Lawman target ammo.  I had 5 failures to eject/extract where the next round in the mag gets jammed under the empty shell casing that was partially pulled out of the barrel. One mag had 4 malfunctions and the other had 1.  The ejection distance was erratic, some at 12" and others at a few feet.

I measured the feed lips on the mags and they were pretty close to each other with similar spring resistance. The extractor is clean and looks fine with good spring tension and holds a round very snugly. I polished the third rail and the leading beveled edge and went back to the range today. The gun was not thoroughly cleaned since I wanted to see how it ran after the third rail polishing.

I started off with 50rds of 124gr Speer Lawman (same lot as before), and I had 7 fail to eject/extract.  Then I switched ammo to 115gr American Eagle, and 100rds ran perfectly. Then I ran 50rds of 115gr Magtech, and they ran perfectly. I picked up one Speer spent casings that caused a malfunction and a couple of Magtech/American casings and brought them home.

The Speer spent round was very snug in the barrel, and the Magtech/American Eagle spent rounds were not nearly as snug.  I think I pretty much covered everything.  I wish I had another recoil spring to try, but I don't.  Oh, the C100 has about 3500 rounds through it.  Any ideas would be appreciated. 

Offline jwc007

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Re: I have a head scratcher with my Canik C-100.
« Reply #1 on: September 17, 2020, 12:37:49 PM »
Weird! I've never had a problem with Speer Ammunition, but then again, it's been a long time since I've used any, preferring to shoot my own Match reloads.

With the Barrel out of the Pistol and Clean, do a plunk test on a loaded round of the Speer Ammunition.  The Cartridge should drop into and out of the chamber without any resistance.
Otherwise, I would have to see your Pistol at a Range to really know what's wrong with it.  It does sound like a weak Extractor Spring, though.
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Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #2 on: September 17, 2020, 01:25:09 PM »
Weird! I've never had a problem with Speer Ammunition, but then again, it's been a long time since I've used any, preferring to shoot my own Match reloads.

With the Barrel out of the Pistol and Clean, do a plunk test on a loaded round of the Speer Ammunition.  The Cartridge should drop into and out of the chamber without any resistance.
Otherwise, I would have to see your Pistol at a Range to really know what's wrong with it.  It does sound like a weak Extractor Spring, though.

Thanks for replying. When I got home I did plunk and spin test on all three brands and they slid in and out easily, but I still polished the chamber with Mothers Mag polish.  It looks like the Speer Lawman case expanded just a hair more and is not as elastic as the American Eagle or Magtech. That was not the case, see my next post. The extractor claw looks great and the extractor spring grips the round very firmly, and easily passes the vigorous shake test (unfired round).   

I'm not too worried at this point since it ran the American Eagle and Magtech just fine. I just like all my guns to run perfectly with any ammo.

Also, I just got off the phone with Tristar, and I asked them about the expected recoil spring life, and he didn't know (parts guy).  Online, someone posted the interval at 2500rds, but I couldn't verify that.  I'm at ~3500rds with the original braided recoil spring. Anyway, my C100 is out of the five year warranty by
less than one month, but he is sending me a new recoil spring, compliments of Tristar.

« Last Edit: September 17, 2020, 02:20:25 PM by Rmach »

Offline recoilguy

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Re: I have a head scratcher with my Canik C-100.
« Reply #3 on: September 17, 2020, 01:50:54 PM »
That is very good of Tri Star to do.
3500 rounds on a recoil spring is just barely breaking it in on my guns.
I'm not an expert just a shooter so what do I know?
I hope it helps.

RCG
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Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #4 on: September 17, 2020, 02:18:30 PM »
Update, I looked over again at the spent Speer Lawman casing that jammed the gun, and I took some caliper measurements to compare it to the good spent American Eagle and Magtech.  The measurements were the same, so I'm like why is that Speer casing so snug in the barrel. Then I discovered the problem with the Speer Lawman.

There is a burr on the bullet end of the outside edge that you can easily catch with your fingernail.  There's nothing like that of the Magtech or American Eagle spent casings. Now did that burr happen during feeding into the barrel or was it there out of the box?  I just checked a box of Speer (same lot), and i couldn't find any with that burr.  My feed ramp is polished to a mirror finish, but I'm going to polish that bottom lead edge on the feed ramp a bit more. Picture of the burr is circled.




Offline Gunnerdad80

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Re: I have a head scratcher with my Canik C-100.
« Reply #5 on: September 17, 2020, 02:21:57 PM »
Did all of those shells that failed to eject/extract have a burr like that?

Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #6 on: September 17, 2020, 02:49:30 PM »
Did all of those shells that failed to eject/extract have a burr like that?

I don't know since they were hand ejected and fell on the floor with others.  The one pictured was saved because the range officer caught it before it hit the floor.

I did a little more polishing on that feed ramp lead edge and top of inside barrel hood.




Offline Gunnerdad80

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Re: I have a head scratcher with my Canik C-100.
« Reply #7 on: September 17, 2020, 03:55:45 PM »
If you look at the front inside edge of the magazines you were using, as it relates to the feed ramp, is there any kind of a snag right there at that edge like a shell casing was catching as it was being fed out of the magazine into the chamber? Just curious.

Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #8 on: September 17, 2020, 04:49:33 PM »
I looked at that earlier, and there's plenty of clearance between the mag and the bullet leaving the mag when it hits the ramp.  Out of 200rds of Speer, i had ~12 failures to extract/eject.  I didn't mention this before, but I fired 100rds of the same Speer ammo last week with no malfunctions.  The problem started with next two range visits.  All total, 450rds were fired in the past week, 300 were Speer, 100 American Eagle and 50 Magtech. No cleaning was done between range visits, other than light oiling.

Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #9 on: September 21, 2020, 07:06:00 PM »
I received the new recoil spring today from Tristar, and it's about a 1/2" longer than my original one. That tells me maybe my old spring was too weak and the slide was cycling too fast.  However, the short ejection distance on some rounds doesn't agree with that IMO.  I'll shoot this this gun again in mid October when I have to re-qualify for my CCL, and then I'll update this thread.

Offline recoilguy

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Re: I have a head scratcher with my Canik C-100.
« Reply #10 on: September 22, 2020, 09:29:44 AM »
What pound is the recoil spring they sent you?
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Offline recoilguy

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Re: I have a head scratcher with my Canik C-100.
« Reply #11 on: September 22, 2020, 10:05:39 AM »
If your spring is weaker your slide cycles back to zero slower. It goes back, stays back, and then comes forward chambering a new round.
if your spring is too strong it cycles back to zero much faster causing your barrel to dip. If too strong the slide will fail to make a complete backstroke and cause your gun to jam.

Also it has been my experience that lowering my recoil spring weight sent me shells farther out as opposed to closer. I'm pretty sure that's because lighter springs give you distance not heavier ones.

my SP-01 came with a 17# recoil spring and shells ejected about a foot and a half. went to 14# and they now land about 5-6 feet away which is perfect in my situations.
Also it seems like you are putting quite a variety of shells and loads through your gun. Find the load you want it to work for and match your recoil spring to that load. That's my experience anyway. Recoil springs function best when you match them to the pressure of the load you shoot, not to be confused with bullet weight.

I have read some of your other threads and know you shoot often. Is your form constant? That has a lot to do with cycling and with ejection as well.
There is so much more to spring weight then length, that looking at how long a spring is and determining the strength of it compared to any other spring seems.........unscientific to me. I would never base my decision off of the fact a spring is 1/2 longer then the old one.

Good luck in October, hopefully you will have the problem solved when you take your class. I'd shoot my gun again first to be sure but thats just me.

RCG
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Offline Rmach

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Re: I have a head scratcher with my Canik C-100.
« Reply #12 on: September 22, 2020, 10:29:52 AM »
The problem was only with Speer Lawman 124gr.  I know what a heavier and lighter spring will do.  The parts guy did not know the spring weight when I asked him.  He just said it's a factory replacement and no other weight springs were available.  I wanted a spring from him that was 2# lighter.  I'm sure this new spring will compress after a few hundred rounds.  For now, my C-100 just doesn't like Speer 124gr, or I have a bad batch of Speer 124gr. Ammo is too expensive now to run hundreds of rounds through my C-100 just to see if the problem with Speer is remedied. I only have ~250 rounds left of it anyway. Thanks for posting.

Offline recoilguy

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Re: I have a head scratcher with my Canik C-100.
« Reply #13 on: September 22, 2020, 10:53:17 AM »
Sorry R, when I read your post it seemed to me like you had the spring thing backwards. But it is now clear you know exactly what is going on.
You are saying it is an ammo problem, my bad I thought you were saying the spring might be a factor.
Man that's a shinny feed ramp BTW
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Offline A.

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Re: I have a head scratcher with my Canik C-100.
« Reply #14 on: September 26, 2020, 07:37:59 AM »
Did you try different magazine with the Speer ammo?