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Old 09-09-2014, 18:20   #1
Kwesi
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New G29 Gen 3 Maiden Voyage issues!

After cleaning, lubing and doing the 25 cent trigger job (hand polished) I took her to the range (stock OEM except for Pearce Ext) and fired 100 rounds of 180gr PD FMJ, 10.3 - 10.5 gr of Blue Dot, Starline brass (not virgin).

Results: 6 failures: (no photos)
4 spent cases failed to eject
1 spent case rim caught on extractor
1 live round nose up on ramp

Initial thoughts: I was rushing due to a time crunch so was I possibly limp wristing? I shoot these same loads in my G20 all day with zero issues. I do have large hands that are more fitted to the G20.

2nd range visit: cleaned & lubed and still stock OEM: Fired 100 rounds of the same BD recipe and a Longshot load.

Results: 2 spent cases failed to eject (see photos below).

I really focused on a firm grip. The first failure was on the 50th round ( BD load ) and was the first round in the mag. The 2nd failure was on the 81st round ( LS load ) and again was the first round in the mag.

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Came home and examined the breech face and extractor, etc and all looks perfectly normal.

I have a Wolf 21# recoil spring and steel guide rod on the way hoping this will correct things. Please share any additional thoughts or questions. I do plan to carry this one. BTW: I just added a Ghost 3.5 Ultimate trigger connector but not their spring package yet. Thx!
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Old 09-09-2014, 18:58   #2
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Not speaking from experience, just from reason...

Check the geometry of the ejector. It could be slightly bent and not be catching enough of the bottom of the case. My guess is that it's not related to limp wristing, but if it is, the heavier spring might make it worse, not better.
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Old 09-09-2014, 21:28   #3
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For some reason the case seems like it is being held too tightly by the extractor or the slide is not traveling far enough to the rear or as TDC20 mentioned, the ejector may be out of place or wrong to kick the cases out and off the extractor.

I have to wonder if they put a 45ACP extractor in yours? That happened to someone at one time...

Good luck getting it sorted out Kwesi!
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Old 09-09-2014, 22:18   #4
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Is the extractor for the G29 and the G20 the same?
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Old 09-09-2014, 22:48   #5
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10mm - EXTRACTORS and Spring Loaded Bearings
SP 01909 Extractor 10mm (15o-5o) - G20-G29 - with Loaded Chamber Indicator (LCI) (use only with 3442 Bearing)

3442 Spring-Loaded Bearing - olive green - 10mm, .45 Auto (use only with 01909 LCI Extractor)

SP 06061 Extractor 10mm (15o-5o) - G20-G29 - non-LCI for newer slide with 15o ejection port

SP 05509 Extractor 10mm (90o-5o) - G20-G29 - non-LCI for older slide with 90o ejection port

SP 01204 Spring-Loaded Bearing - olive green - 10mm, .45 Auto with non-LCI extractor (do not use with LCI Extractor)

It seem that the 20 and 29 do use the same one...I hope this helps!
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Old 09-09-2014, 22:49   #6
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The "o" is Degrees

I e-mailed you a parts list that the info came from
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Last edited by _The_Shadow; 09-09-2014 at 22:53..
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Old 09-09-2014, 23:41   #7
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First, I didn't know Wolff made a 22lb spring for the G29, I thought they were 19, 21 & 23, in the extra power versions.

For certain with those loads you don't need a heavier recoil spring. I have run 180gr loads up to about 1250fps out of my stock G29SF with no feed issues or frame battering. FWIW, 10.4gr of BD clocks in about 1100fps from my G29.

I think if ejection is your primary failure, a heavier recoil spring is going in the wrong direction with that load.
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Old 09-10-2014, 06:54   #8
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It is the 21# spring per my OP.
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Old 09-10-2014, 07:27   #9
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Kwesi, the e-mail I had for you shown was not any good..but here is the parts listing link
https://www.google.com/url?sa=t&rct=...IBufGLJAkE9cFg
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Old 09-10-2014, 07:45   #10
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Quote:
Originally Posted by Kwesi View Post
It is the 21# spring per my OP.
Got it, not sure why I read 22lb.

In any case, for those loads, I don't think an aftermarket spring in your G29 is the solution. My G29SF has run everything from 40S&W level loads to very hot (180gr at 1250fps) loads with no feed issues or frame battering.

I think I would give Glock a call and ask them what they think is wrong.
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Old 09-10-2014, 08:40   #11
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I just got off the phone with Glock. Surprisingly they were not overly concerned with 8 failures in 200 rounds. He thought they might have been weak rounds. I did confirm the extractors are the same as in the G20. He did not think it was the ejector. He is mailing me a new recoil spring. I'll update the thread once I install it. I did purchase a Wolf 22# spring years ago from Double Tap when I first got my G20. I've always run it and it is 100% from 1175 - 1600 FPS.
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Old 09-10-2014, 09:23   #12
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I too run a 22lb (ISMI) recoil spring in my G20SF's. I too have had perfect feed with that weight regardless of the round from light 40's (175gr @800 fps), to the heaviest 10mm nukes. I originally installed the 22lb as I was getting the slide slamming the frame with the nukes.

What is surprising is the problems you had with the 29. My Gen 3 G29SF (which I think shares the same RSA as the newer Gen 4 model) has been flawless, regardless of load. I get no battering and I even shoot the gun a little better than my 20's, I have always attributed that to the different style RSA.

Good luck with the search for an answer.
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Old 09-11-2014, 15:31   #13
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The Wolff Gun Springs RSA has a two piece rod and springs very similar to the factory except it is non captive. The 21 lb spring set works with all of the barrels including the 40S&W weak target loads.
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Old 09-12-2014, 22:09   #14
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My SF G29 has been flawless as well. In fact it's the only glock in 10mm that has fired UW 220 HC without any issues.
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Old 09-13-2014, 05:43   #15
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Quote:
Originally Posted by _The_Shadow View Post
The Wolff Gun Springs RSA has a two piece rod and springs very similar to the factory except it is non captive. The 21 lb spring set works with all of the barrels including the 40S&W weak target loads.
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That's been my experience as well. My G29 runs the Wolff recoil assembly using the 21lb spring. Not one issue in thousands of 10mm rounds, including reloads, but then I tend to shoot the hotter stuff. When I drop in my LWD .40 tube, I re-install the Glock factory spring and it runs .40 ammo just fine. I save the XP Wolff set up for shooting *real* 10mm ammo.

The OP might try the lower 19lb spring in the Wolff recoil assembly since he's already got the unit. Wolff gives you 3 options in spring weights for a reason - so you can tune the G29's recoil system (and hence, the felt-recoil) to the energy level of the ammo you're shooting.
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Last edited by agtman; 09-13-2014 at 05:44..
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Old 09-14-2014, 20:15   #16
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Wolf 21# spring/guide rod: Range results

Quote:
Originally Posted by WeeWilly View Post
First, I didn't know Wolff made a 22lb spring for the G29, I thought they were 19, 21 & 23, in the extra power versions.

For certain with those loads you don't need a heavier recoil spring. I have run 180gr loads up to about 1250fps out of my stock G29SF with no feed issues or frame battering. FWIW, 10.4gr of BD clocks in about 1100fps from my G29.

I think if ejection is your primary failure, a heavier recoil spring is going in the wrong direction with that load.
I tested the G29 today (100 rounds) with the Wolf 21# spring using the same loads and I had the best results with 99% success. Zero failure to eject compared to 7 out of the first 200 running the OEM spring BUT I did have 1 failure to feed (nose on feed ramp) on the 53rd round. Any additional thoughts?

The Glock replacement guide rod has not arrived. When it does the next test will be with it.

Thanks to Shadow for suggesting this Wolf spring!
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Old 09-14-2014, 21:31   #17
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Kwesi, you're welcome. I do have the 19lb and 24lb spring sets and only tried the the 24 lb with some very heavy loads for testing purposes. Be sure to place the drops of oil on the slide points as recommended by Glock.

It seems that something is pushing the nose down, as the fresh round is trying to ride up the feed ramp, it is as though the spent casing is still holding on under the extractor just long enough to have the nose not come up...may be more intermittent with more use.

Next time out, place a drop of light oil, on the pivot point of the extractor, just incase it is binding under recoil stresses. How did the ejection pattern look, did the ejected cases pile up or scattered?
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Old 09-14-2014, 21:38   #18
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Shadow: strong ejection. I purposely shoot on the end lane because it has the most insulation allowing 95% of the rounds to bounce behind me or end up at my feet. Other wise most would be down range. I oil the slide as Glock recommends. I will add a drop on the extractor. Stay tuned for the OEM replacement spring test.

BTW: I used the same mag for all 100 rounds as compared to alternating between two mags for the first 200 rounds.

Last edited by Kwesi; 09-14-2014 at 21:39..
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Old 09-14-2014, 22:43   #19
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Quote:
Originally Posted by Kwesi View Post
I tested the G29 today (100 rounds) with the Wolf 21# spring using the same loads and I had the best results with 99% success. Zero failure to eject compared to 7 out of the first 200 running the OEM spring BUT I did have 1 failure to feed (nose on feed ramp) on the 53rd round. Any additional thoughts?

The Glock replacement guide rod has not arrived. When it does the next test will be with it.

Thanks to Shadow for suggesting this Wolf spring!
You seem to be making progress. To reiterate what I said before, there is absolutely no reason a stock G29 that is functioning properly should not cycle flawlessly middle of the road 10mm loads like you are shooting.

When it comes to nuclear loads that are outside what Glock envisioned when they designed the gun, strange things do seem to occur when pushing the envelope and heavier springs do seem to address some of these failures, but there is nothing in a 180gr slug being pushed to 1150fps that is outside the design envelope of the stock G29. If the new stock RSA exhibits the same fail to eject and the heavier Wolff spring works, if were me, I think I would stay on Glock for answers to why my stock gun could not cycle very "stock" loads.
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Old 09-15-2014, 08:27   #20
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WeeWilly: sure will but hope I don't have to make that call.
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