Question for the Glock afficiandos

[12Bravo20]

Except when I took it on it's first range trip this past weekend, it consistently jammed on the Norma 124 gr FMJ, which were the first 100 rounds of ammo I ran through the gun. I think the fact that it performed without a hitch using the same ammo today (same lot from Norma, actually) means that something other than the quality of the ammo is causing the issue.

Did you change your grip/shooting technique this last range trip compared to the first range trip?

 

[Outlaw75]

Did you change your grip/shooting technique this last range trip compared to the first range trip?

No.

 

[trackskippy]

Have you let anyone else shoot the gun with you?

 

[JTQ]

Sorry, should have been clearer. My 1911's are in .45 ACP.

I didn't think you had a 9mm 1911. If you did, you probably would have run into this issue. Any of the weakest ammo in .45 Auto will drive the 1911 slide. Lightweight/cheap/range 9mm ammo is a repeat offender in many handgun feeding issues, especially "duty" type guns designed for long recoil spring life with more powerful defensive ammunition (when new), or those originally designed for more powerful rounds.

 

[JTQ]

Except when I took it on it's first range trip this past weekend, it consistently jammed on the Norma 124 gr FMJ, which were the first 100 rounds of ammo I ran through the gun. I think the fact that it performed without a hitch using the same ammo today (same lot from Norma, actually) means that something other than the quality of the ammo is causing the issue.

Aren't you using the factory magazines?

Day one issue, stiff spring, you haven't shot a Glock before, and your grip could be off.

Next time out, you've concentrated on your grip, thanks to recommendations from members. Your grip issue is corrected, but now the thing that isn't working is the lightweight/cheap/weak ammo. The Norma ammo with more "oomph" is driving the slide allowing the gun to work.

Of course it could be a mag issue in that all of the Norma ammo was fired using particular mags, and all the rest of the ammo was cycled through different mags. You didn't indicate that was the case, and that would seem unlikely.

 

[LiveLife]

• 50 rnds Federal Champion* 115 gr FMJ - Jam City. (I expected this, the main reason I took it is because I'm trying to shoot up what I've got of this crap.)
• 50 rnds Winchester White Box 115 gr FMJ - 1 Failure to feed.
• 50 rnds Remington Range (Not the UMC green & white box stuff) - 4 Failures to feed. Noticed at this point that the failures were occurring when there were 5 or fewer rounds in the mag.
• 50 rnds Norma 124 FMJ - 0 Failures to feed.

I'm sort of thinking this may be a mag issue. To be honest; I've never really had feed issues with my M&P's or my 1911s, so I'm out of my wheelhouse here.

Since your feeding issue improved with Norma, it could be Glock recoil spring "breaking in". Imagine slide not going back far enough to generate return speed/force.

How about this to rule out stiff new recoil spring issue?

Keep your slide locked back until the next range session. If your feeding issue improves, you are welcome. If your feeding issue continues, we go from there.

 

[JohnKSa]

Get someone else to shoot the gun because that's something Glock is going to ask you when you call. Then call them. The gun shouldn't be jamming.

 

[Ks5shooter]

All mine and I have many,run dry,wet dirty clean and eat whatever I feed it. Thinking limp wristing.

 

[Outlaw75]

Get someone else to shoot the gun because that's something Glock is going to ask you when you call. Then call them. The gun shouldn't be jamming.

Going to do that. This gun has another problem, no matter what I do I can't get it to shoot left and low like all Glocks are supposed to.

 

[21H40]

Going to do that. This gun has another problem, no matter what I do I can't get it to shoot left and low like all Glocks are supposed to.

I have not experienced the low and left thing. Interesting.

 

[JohnKSa]

The low left thing is a trigger technique issue. It's really a low and to the weak side thing, but since most folks are righties, it ends up being low left.

 

[tarosean]

Going to do that. This gun has another problem, no matter what I do I can't get it to shoot left and low like all Glocks are supposed to.

where is it shooting?

I run Heinie Rears and Dawson FO on all my Glocks. Except, my wife’s G19 she likes the crap in the basket plastic sights

 

[InTheSwamp]

The left shooting is you, not the Glock.
If you have a proper, firm grip and the pistol malfunctions, then call Glock CS.

No break-in is needed, and any factory ammo you find on the shelves should fire without issues.

 

[Riomouse911]

It is very hard to limp-wrist a Glock.
As an example, the long-time instructor in the lane next to me was teaching a new gun owner (female) the proper grip to start off her shooting session. During his initial demo he demonstrated the reliability of the Gen 3 Glock 19 using literally his thumb, middle and trigger finger only on the gun. (Below are video clip images, I was shooting my CZ-75 SP-01 at the time and didn’t see this until I watched the clip.) Her new gun fired, cycled and was ready for another shot.



I am a Glock armorer and was responsible for the 65-odd Gen 4 Glock 19 and Gen 3 Glock 26’es that our office had for issue, and like some of the others, I also have a passel of 9mm Glocks at home. (From new Gen 5’s, to a Gen 1 Glock 17, to three Gen 3’s I assembled from aftermarket parts and factory frames.) None of the guns I took care of, bought or built have ever had the issues the OP is reporting, with 115-150 gr ammo of various grades (including +P and +P+).

There is something going on. Like any other diagnosis, clean and lube (done, but do again), swap to different ammo types (done) swap magazines (?) and swap shooters(?). If these issues continue after mag and shooter swaps, contact Glock and they will fix it pronto.

Good luck .

Stay safe.

 

[JDR]

I have never heard of anyone having that many problems with a new Glock

Roger That

You're not supposed to clean a Glock before shooting it...you'll remove the factory applied anti-seize

Roger That Also

Feed issues with a new G19 is often a matter of not getting you wrist/arm "behind" the grip to give the slide something to recoil/push against. Trying different ammo is a good idea.

My Gen3 17 & 19 both have Grip Force Adapters, which let you “choke up” on the grip without getting slide bite. My Gen4 21 and my 19X both have the large beavertail backstraps that came in the box, and these work for me using any type or quality of ammo that I bring to the range with me.

 

[Tallball]

My daughter has a "paranormal ability" that allows her to make any semiautomatic handgun jam.

I've seen her make a Glock malfunction. Not saying everyone can do it, but it can be done.

 

[trackskippy]

Anyone can do it, its all a matter of technique and how youre shooting. Some have to force it, to make it happen, and others need to work on their technique to stop it.