[xander]

I hope you are not getting this information from "The Gun Zone" I have heard of kb's on 1911s, HK, Sig, they all do it, I've never seen a final report as to why it did it, always armchair QBs reading some first claim with no evidence to support it then running off at the mouth to everyone that will listen that this particular gun is worse than the rest. Portland's PD issue with Glock .45s as one example, I have never read a follow up that stated the actual findings of what happened, yet I go to local gun shops and hear salespeople claim Glocks are bad because of that one incident of which they know no more than the weapon failed.

[ghostcat]

No I'm not relying on the gun zone for my evaluation. I'm relying on my own and other smiths evaluations. The problem is that the chamfering on the barrels used on the earlier versions of the glock .45s and .40s left too much of the case unsupported causing the catastrophic failure of the case and gun. This is something that can happen in any gun with a chamfered chamber mouth, if the chamfer is done incorrectly.
To my knowledge glock has changed the chamfer on the .45 and .40 at least twice to address the problem, it appears that the last change was effective. What disturbs me about glock is the failure to acknowledge that there was a problem and their attempts to tar anyone who claims that the problem existed. To be fair that was probably a reaction inspired by their lawyers.
In regards to the portland incident, it was not a single incident but was in fact a case where 3 incidents occurred in a 2 year period of time. It also involved 3 different lots of commercial ammo, as after each failure the Portland Pd pulled all the ammo from the same lot as was involved in the catastrophic failure. In addition there have been several other failures throughout the U.S. and at least one in Italy.