[The KG9 Kid]

There is some merit to the idea that improperly-loaded cases with too high a SAAMI pressure, battered duty rounds with anviled projectiles, or weakened reused brass (most likely from fired Glock brass) was the cause of some of the blow-ups with service Glocks.

Of course, there's another school of thought that adds the idea that Glocks also don't scale safely because of the lock-up design.

If Glocks were as hardy as their champions claim, why doesn't Glock scale the same design up to the powerful .50 AE instead of making a decaffeinated '.45 ACP Lite' round in the Glock .45 cartridge to supplant the real .45 ACP?

If you know anyone who shoots full power 10mm loads in their Glock 20, please let me know before they take the lane next to me at the range.

[Tallguy]

Of course, there's another school of thought that adds the idea that Glocks also don't scale safely because of the lock-up design.

That theory is also consistent with the Glock Kb data. And if it is true then Glock has a bigger problem than they are probably willing to admit. The 'Metallurgy Theory' makes sense because recalling a few barrels here, and a few there, makes it 'look' like you corrected the problem when, in fact, you've really got a design problem.