Grump
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No takers on this thread: http://www.thehighroad.org/showthread.php?s=&threadid=93243
Anyone lurking here have data?
Anyone lurking here have data?
Glock Jams
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Black Snowman
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FTE eh? Never had that problem with my 24P unless ammo was out of spec. What kinds of ammo are you using? How much useage is on the springs? Are you using extra power springs like Wolff in the magazines? Is there any damage or excessive wear on the extractor? All these things could have an effect.
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Grump
Member
About 2,000 rounds through the gun, OEM springs everywhere including the mags. Ammo is my own reloads (two different loads), all in spec and above the middle for power but not max. The other thread describes how hard it is to "limp wrist" this ammo (which applies to both loads) to a jam of any sort. No damage to the extractor and the spring tension on it is tight. It also snaps over cartridge rims okay.
The first such jam *might* have been with WWB factory ammo--it was so long ago, and being the first, I didn't worry about it. I wonder about the ejector because I get brass marks on the lower middle of the ejection port, and some cases get a flat spot on the mouth on ejection.
The first such jam *might* have been with WWB factory ammo--it was so long ago, and being the first, I didn't worry about it. I wonder about the ejector because I get brass marks on the lower middle of the ejection port, and some cases get a flat spot on the mouth on ejection.
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Grump
Member
Wow. Almost a week since I first posted and there's not a lot of info.
I'm almost ready to post on
rec.guns 
, where the noise of ignorant buffoons almost (sometimes? often?) drowns out the reliable data.
I'm almost ready to post on
rec.guns , where the noise of ignorant buffoons almost (sometimes? often?) drowns out the reliable data.Black Snowman
Member
2000 rounds shouldn't be bad. I didn't change any springs in mine until 4000+ (lost track) and they really didn't even need it.
I frequently get banged up case mouths with my Glock 24 but "tracking" on the lower part of the port sounds strange. The ejector is just a stiff piece of wire. It's quite possible this is damaged or bent. I'd look there. Also, if you have any other .40 or 10mm glocks you can try changing out extractor assemblys on their slides and see if the problem moves with them.
I'm not an armorer or gunsmith but since no one else has any ideas I figure I'd chime in.
I frequently get banged up case mouths with my Glock 24 but "tracking" on the lower part of the port sounds strange. The ejector is just a stiff piece of wire. It's quite possible this is damaged or bent. I'd look there. Also, if you have any other .40 or 10mm glocks you can try changing out extractor assemblys on their slides and see if the problem moves with them.
I'm not an armorer or gunsmith but since no one else has any ideas I figure I'd chime in.
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Grump
Member
Good suggestion, but I already looked and it's okay, no chips or wear or nuttin'.
My Model 34, never ran right until I changed out the stock recoil spring. Never bothered me but everybody else who ever picked it up jammed it. Changed ammo, mag followers, cleaned grumbled, seriously thought about selling it.
I changed the recoil springs to a Wolff, with their rod, at 2 lbs lighter than stock and it runs like a clock, I won't be shooting in +P ammo in it with those springs, but I never fire +P anyway.
While my issue was more feed related, I did notice that when my boys shot it before it didn't lock back after the last shot. The lighter spring fixed that.
Don't know if this will help or not but I danced around this fix for a long time, before doing it ( ITS A GLOCK I SHOULDN'T NEED AFTERMARKET PARTS) but I listened to the Glock experts on this on and glad I did.
I changed the recoil springs to a Wolff, with their rod, at 2 lbs lighter than stock and it runs like a clock, I won't be shooting in +P ammo in it with those springs, but I never fire +P anyway.
While my issue was more feed related, I did notice that when my boys shot it before it didn't lock back after the last shot. The lighter spring fixed that.
Don't know if this will help or not but I danced around this fix for a long time, before doing it ( ITS A GLOCK I SHOULDN'T NEED AFTERMARKET PARTS) but I listened to the Glock experts on this on and glad I did.
El Tejon
Member
Had problems with this before. Weapon would not go into battery.
I threw away aftermarket recoil spring and put in factory spring. No problems. It was a G23, but have not carried it since I left LE.
I threw away aftermarket recoil spring and put in factory spring. No problems. It was a G23, but have not carried it since I left LE.
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Grump
Member
Pushed on the extractor and it swivels just fine. Spring tension seems unchanged from the early days as well...
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Grump
Member
To answer the diagnostics:
What are the specific loads you are using?
180-grain Berrys at about 900 fps, and 155-gr Rim Rocks (Brinnel 22+) at about 1050 fps, either WAP or 231, depending on which specific batch they were.
How far is the brass being thrown when you fire it and it doesn't jam?
About six feet, just like WWB.
If you download by one round in the mags do you ever have a jam?
Never downloaded for first rounds, except for a few IDPA runs. This has happened only with first rounds, beginning of the day, chamber the thing-draw-bang-nobang.
Did you buy the mags new?
One was bought new, one was used.
What follower do they have in them?
Have to tell you tomorrow. All are pre-'94.
What are the specific loads you are using?
180-grain Berrys at about 900 fps, and 155-gr Rim Rocks (Brinnel 22+) at about 1050 fps, either WAP or 231, depending on which specific batch they were.
How far is the brass being thrown when you fire it and it doesn't jam?
About six feet, just like WWB.
If you download by one round in the mags do you ever have a jam?
Never downloaded for first rounds, except for a few IDPA runs. This has happened only with first rounds, beginning of the day, chamber the thing-draw-bang-nobang.
Did you buy the mags new?
One was bought new, one was used.
What follower do they have in them?
Have to tell you tomorrow. All are pre-'94.
Grump, the loads are a little soft. Powder selections are good. I'm going to go after the gun and/or mags as being a problem.
Does your 34 have the lightening cuts in the slide?
I have seen this type of thing in 1911's before with heavy weight recoil springs and full mags. The drag of the top round on the bottom of the slide is enough that the slide velocity is lowered far enough that it won't eject fully. Extra powered mag springs and a light recoil spring will do the same thing.
You said all the springs are stock, so we can discount that.
Bump the loads up a little and this will go away IMO. You can do that, or we can continue trying to find the cause since your loads aren't all that light. They are a smidge light but not drastically.
Does your 34 have the lightening cuts in the slide?
I have seen this type of thing in 1911's before with heavy weight recoil springs and full mags. The drag of the top round on the bottom of the slide is enough that the slide velocity is lowered far enough that it won't eject fully. Extra powered mag springs and a light recoil spring will do the same thing.
You said all the springs are stock, so we can discount that.
Bump the loads up a little and this will go away IMO. You can do that, or we can continue trying to find the cause since your loads aren't all that light. They are a smidge light but not drastically.
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Grump
Member
I guess I forgot all this time to say it's a G-22. I'm reluctant to believe it's the loads because it's so hard to induce "limp wrist" jams. The loads are dimensionally fine, using a fairly new-made Hornady TiNi set and everything gages out well within spec.
Followers are
a. 1028 on the slidestop engagement surface, with .40 over on the right side (drop-free; and
b. No markings at all on the NDF mag.
but isnt the follower more of a factor in feeding the last half of the rounds, and especially the last two rounds from the mag?
Followers are
a. 1028 on the slidestop engagement surface, with .40 over on the right side (drop-free; and
b. No markings at all on the NDF mag.
but isnt the follower more of a factor in feeding the last half of the rounds, and especially the last two rounds from the mag?
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Grump
Member
Q------How hard is it to push the top round out of the mag with your finger compared to the second round down?
A--Just the same. Hence my queries.
Q-------This only happens on the first mag of the day, and not on subsequent mags loaded with the same ammunition?
Twice for sure. On the third (earliest) one, I don't remember if it was the first shot of the session or first out of a new mag mid-session, might have even been something other than the first shot. This was months ago and I blew it off--Not so willing to blow it off any more.
A--Just the same. Hence my queries.
Q-------This only happens on the first mag of the day, and not on subsequent mags loaded with the same ammunition?
Twice for sure. On the third (earliest) one, I don't remember if it was the first shot of the session or first out of a new mag mid-session, might have even been something other than the first shot. This was months ago and I blew it off--Not so willing to blow it off any more.
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