One POSSIBLE solution to the kaboom problem is to use a replacement barrel with a fully supported chamber, such as a KKM or Jarvis barrel. They have the added benefit of being compatible with non-jacketed bullets.

Do any of you guys use them?

I do, I have one for shooting lead bullets, in my G21

A friend of mine works for a local company that makes bulk lead bullets, and I get free bullets all the time, I thought it was worth it.

I don't think there's a doubt that the Glock kaboom problem is directly attributable to the partially unsupported chambers in the barrels they use.  Replace the weak link, and you've got a very tough and versatile pistol.

And to answer the original question - I haven't changed any of mine, but I have seen a couple of replacements.  They were fine - as accurate or more than the factory barrels.  And no kabooms as of yet.

I only have 1 replacement barrel for 1 out of my 5 glocks, a cheapie Federal Arms barrel I got off of eBay for $65 or so to shoot my lead reloaded bullets.

The other guns I shoot lead reloads then about every 4th mag shoot a couple of FMJ rounds to scrub out the lead.  I dunno, nothing's kaboomed so far.

When I get the coin again, I want to get a KKM bbl for each of the Glocks just to shoot cheaper lead reloads.

Have you guys had any issues with feeding or reliability, especially when the gun is dirty?

Quoted: Have you guys had any issues with feeding or reliability, especially when the gun is dirty?

Not with mine.

I have a non glock comped barrel and a 357 Sig barrel for my G35

No issues, and I like my guns dirty and dry.

Quoted: The other guns I shoot lead reloads then about every 4th mag shoot a couple of FMJ rounds to scrub out the lead.  I dunno, nothing's kaboomed so far.

That seems like a really, REALLY bad idea.

I got a KKM Model 23 barrel a while back.

I tried it with a box Federal Hydroshoks and got quite a few malfunctions.  Specifically, as the round fed into the chamber it seemed to have trouble reorienting from a slightly upward pointing direction to a straight forward direction, and the slide would fail to go into battery.

KKM has a caution that its chamber is less than SAMMI specs.  And I suspect that’s ultimately the cause.

In fairness, I haven’t gotten around to trying any other brand of ammo.

Wish now I’d gotten a Bar-Sto instead.  When I get around to it (and assuming an ammo change doesn’t solve the problem), I’m going to open the KKM chamber up to SAMMI specs and see if that helps.

Quoted: Quoted: The other guns I shoot lead reloads then about every 4th mag shoot a couple of FMJ rounds to scrub out the lead.  I dunno, nothing's kaboomed so far. That seems like a really, REALLY bad idea.

+ 1 million

If you must do this, please take photos of both the pistol and your hand so you can a before and after thread here later.  

Seriously – bad idea.

Same issues as 199, but with a Jarvis. I sort of fixed it by some polishing and going to a 2# heavier recoil spring, but it wasn't any more accurate and I was still getting failures to feed. I finally decided it was worth the extra $10 a case to shoot new, jacketed ammo. No more reman ammo for me and I don't reload. That barrel (for a G23) is now gathering dust and it's back to box-stock-Glock.

aa

Quoted: Quoted: The other guns I shoot lead reloads then about every 4th mag shoot a couple of FMJ rounds to scrub out the lead.  I dunno, nothing's kaboomed so far. That seems like a really, REALLY bad idea.

I dont try to do it often and I am considering KKM replacement bbls

I have a .357 Sig barrel for my G-23 I use every now and then.
Of course I don't have Glock kaboom issues.

I have used KKM in a longslide .40 and in a Glock 22 .40 to convert both to .357 Sig.  True drop in fit, and work very well.

In my carry Glocks (G17, G21, G31) I use a stock bbl.  In my competition Glocks (G34, G35) I use KKM bbls, only because my practice USPSA handload was tumbling at 7yds.  But in my CZ it ran fine.  I think the low velocity combined with the polygonal rifling and a long bullet caused the tumbling.

My USPSA practice load is a 147gr Berrys FMJ (plated) going 875fps using Federal primers and VV320 and works great in the KKM.  It's a very high pressure but low velocity round and requires an undersize sizing dies to prevent bullet set back.  I've basically stopped shooting Production division since I got my STI limited gun, but I do miss shooting in Production.

Quoted: Have you guys had any issues with feeding or reliability, especially when the gun is dirty?

Define dirty?
I rarely go past 1000 rounds without at least a light cleaning.
At the range, after 300-400 rounds I will pull the barrel real quick and run a rag over the feed ramp. In many thousands of rounds through a couple of Glocks, I have never had even a single failure of any kind...with several ammo manufacturers. (all FMJ)

My Glocks are bone stock with factory barrels and springs.
Under normal conditions you are going to have a hard time getting one to fail, assuming it isnt defective. I personally keep mine clean since I carry them and trust my life to them, but they have gone bang every time I pulled the trigger.