[SDGlock23]

Ouch! Thankfully you're okay though. We've all made mistakes, just some bigger than others.

[unclebob]

Call Glock and see what they have to say. Don’t lie to them. They will have you send them the gun. They in turn will send it to Austria and there engineers will go over it with a fine tooth comb. Even people who think there Glock are clean. They will know that you were shooting lead even though you were using a KKM barrel.
Don’t know 100%. But I think the LNL is the same as a Dillon that uses springs on the powder measure. If you raise the ram and the powder dumps then lower the platform a couple of inches then raise the platform again you just added a double charge. That is one of the many things that I like about the 650 with the fail safe system. It will not dump power again. You have to lower the platform all the way down. And by then the shell plate has rotated.
If you have a problem and pull the charged case out and put it back under the powder measure you will get a double charge. The best way is just dump that charge and start over.

[jeffreybehr]

This is one of the reasons I do NOT use powders that can be double-charged. Switch to a slower-burning powder that occupies substantially more than half the case.

That won't prevent squibs, but it WILL prevent double charges.

[jeffreybehr]

Originally Posted by shotgunred

I have had 1 squib and it cycled the next round in just fine. Thankfully the RO yelled Seize Fire!

...ahem...it's Cease Fire, as in Stop Firing.

[WiskyT]

I don't think a squib followed by a healthy round would do that much damage. When Ruger introduced the P85, they demonstrated it by firing it with a bolt threaded into the bore to seal it off. They fired it repeatedly, each time cutting away part of the slide, until finally the slide cracked. They gun never had a catastrophic failure.

Bulged barrels, even case blowouts, are what you typically get with a squib incident.

I don't know if I've ever seen a failure as bad as this one on the internet, or in real life. Frankly, the OP is lucky to be alive. There have been incidents where extractors have injured/killed people on the line near a KB.

[SARDG]

Originally Posted by jeffreybehr

This is one of the reasons I do NOT use powders that can be double-charged. Switch to a slower-burning powder that occupies substantially more than half the case.

That won't prevent squibs, but it WILL prevent double charges.

And what will become of my powder puff loads from fast powders and heavy bullets? I don't load to save money (though it's a wonderful byproduct); I load to develop competition ammo that is soft-shooting and just makes PF.

[SARDG]

Originally Posted by WiskyT

...There have been incidents where extractors have injured/killed people on the line near a KB.

I was ROing a GSSF match earlier this month when, what appeared to be an over-charged round, developed a large bulge and near case-head separation blowing the extractor sideways right out of the gun across the bay. The shooter had some powder burns, but everything remained intact. The case was nickle, but allegedly only reloaded one time.

[The Fed]

Go to Amazon and enter this:

American Weigh Scale Ac-650 Digital Pocket Gram Scale, Black, 650 G X 0.1 G

It's only $10.

[Colorado4Wheel]

Sorry. Buying a cheap low quality digital scale is never a solution to a KB issue.

[Saugus]

Wow! Nasty. I agree with everyone else my best guess and only guess is a double charge. Thank God you weren't more seriously injured. Looking at the pics one thing jumped out at me and that is how well the slide on the Glock held together outside of the unsightly bulge on the right hand side and the small crack. At least the slide kept the explosion internalized.

Glad that you are OK other than the owie on your trigger finger.

Don't want to preach to the choir here folks but I can't stress enough how important a good pair of safety glasses are when shooting.

Fingers are one thing, eyes are a totally different matter.

[3.slow]

Originally Posted by SARDG

10,000 rounds in how many years?

Probably 3-4 years. I shot long distance so a visual inspection isn't going to cut it when it comes to bullet placement 600-1000 yards downrange. I measure to the tenth grain every round, no exceptions.

[The Fed]

Originally Posted by Colorado4Wheel

Sorry. Buying a cheap low quality digital scale is never a solution to a KB issue.

I've had this scale for a year and the calibrated weight I use to check it before each use is always right on.

[fredj338]

Originally Posted by 3.slow

Probably 3-4 years. I shot long distance so a visual inspection isn't going to cut it when it comes to bullet placement 600-1000 yards downrange. I measure to the tenth grain every round, no exceptions.

Depending on your purpose & powder choices, weighing very charge isn't necessarily going to give you any accuracy advantage, even out @ 1000yds. In handgun ammo, total waste of valuable time IMO. Any decent pwoder measure will throw 1/10gr accuracy, 1/5gr max error, no handgun ammo is going to suffer accuracy, even out to 200yds. For years I threw charges for my 44mags shooting metsil. Weighing charges is way over rated, but hey, your time.

[Beanie-Bean]

I use an LED lamp from IKEA to visually check the charges. I learned about the lighting thing from seeing "pictures of your reloading bench" posts, as well as from the guys here on the forum who use lights close to the press. Some guys even use the magnifying glass with the light ring.

Here it is:



I've usually got a really good view of what's been thrown at the powder measure station once I get going. The shellplates are cleared when adding a new tube of primers, too.

[Colorado4Wheel]

Originally Posted by The Fed

I've had this scale for a year and the calibrated weight I use to check it before each use is always right on.

Calibration weight is useless. It tells you nothing about if the scale is accurate at lower weights and if the scale is consistent.

[DoctaGlockta]

One of the reasons I use Unique in 45acp.

No one has mentioned that perhaps the KKM barrel was at fault. While unlikely I would at least send it into KKM for an evaluation.

More information is needed. Was there anything left in the barrel? What were the circumstances of the round fired right before the failure.

I agree with Whisky that this was a pretty catastrophic failure looking at that barrel. Isn't right where that baby started to split be the strongest area of the barrel?

I've seen bolts driven into a barrel of a semi-auto and not seen the damage like this (search youtube iraqveteran8888 hipoint test).

How many rounds had that barrel seen?

Something isn't right. I don't think this was just a double charge.

OP glad you are ok. I'd be sending that barrel back to KKM and give us some more info on exactly what happened as much as you can remember.

Appreciate you sharing. Most would have not I expect.

[shotgunred]

Sounds like a powder check die should be in your future.

[rsrocket1]

FWIW, a 10g charge of Bullseye would fill the case to 0.2" from the top and result in a 34,400 psi peak. That doesn't really seem like it would blow up a gun like that, especially since 9mm and 40 S&W can handle 35,000 (unless Glock makes their 45 ACP barrels much thinner because 45 ACP is only rated at 21,000 psi). Of course if the barrel were already heavily stressed, it could let go.

OP
You said you were shooting RN @ 990-1000fps, was that 230g RN? If so you were already at 23,000 psi and really pushing it. Were you using something like 6g Bullseye for that?

[Anglin_AZ]

Originally Posted by rsrocket1

FWIW, a 10g charge of Bullseye would fill the case to 0.2" from the top and result in a 34,400 psi peak. That doesn't really seem like it would blow up a gun like that, especially since 9mm and 40 S&W can handle 35,000 (unless Glock makes their 45 ACP barrels much thinner because 45 ACP is only rated at 21,000 psi). Of course if the barrel were already heavily stressed, it could let go.

OP
You said you were shooting RN @ 990-1000fps, was that 230g RN? If so you were already at 23,000 psi and really pushing it. Were you using something like 6g Bullseye for that?

230 RN lead w/7.1 gr of powder. Felt hot and was high on the chrony. We then switched to 200 RN Berrys w/5 gr. of powder. Then cablooey!

I do remember the previous shot being expelled from the barrel so I doubt it was a squib. I'm thinking double charge. On my LNL I may have pushed the cartridge into powder drop dropped the lever half way and made some adjustment and re-extended the cartridge into the powder drop for the second time and missed the powder check die visual.

I'm weighing ALL my rounds for irregularities now.

[Colorado4Wheel]

Weighting loaded rounds really doesn't work in practice.

[DoctaGlockta]

Originally Posted by Colorado4Wheel

Weighting loaded rounds really doesn't work in practice.

I agree. Get out your bullet puller. Don't take any chances.

[Bren]

As a Glock Talk member, you are supposed to title the thread, "another defective Glock kaboom" and then start by saying, "I know it wasn't the ammo...." You may get suspended for mentioning reloads right up front.

[IndyGunFreak]

Originally Posted by Colorado4Wheel

Weighting loaded rounds really doesn't work in practice.

I agree... I've never understood people's fascination with weighing loaded rounds as a way of checking that the round was put together properly. If the round is already "complete" by the time you're checking it.... You're to late... pull it.

Bullet weight variations, brass weight variations, etc.. that can add up pretty quickly.

Glad you're OK.

IGF

[xxhaxx]

Reddit buddy xd

[alank2]

Hi,

Originally Posted by IndyGunFreak

I agree... I've never understood people's fascination with weighing loaded rounds as a way of checking that the round was put together properly.

For me it is quite effective, but I usually load the same headstamp so that removes the large weight variation with multiple types of brass. I usually do it for extra peace of mind and it only takes a few minutes with a digital scale at the same time I case gauge check them. I can't remember a time where the spread was so large that it wouldn't have easily let me pick out a squib or double.

Good luck,

Alan