quote:

Originally posted by 45-70 Govt.:
OK then . . . take the barrel out of your Glock and drop a round in the chamber. Have a look at how the feed ramp cuts beyond the web of the case.

Then rattle the case in the chamber. You'll note that the brass fits loose, really loose. That's "partially supported."

The brass expands when fired. Then it's resized in reloading. This work hardens the brass.

Since the brass is not supported in the chamber on the Glock, and since the feed ramp cuts beyond the web in the brass, reloads in a Glock -- particulary 9mm and 40 Smith high pressure rounds loaded with fast burning propellant like Red Dot -- reloaded brass becomes work hardened and fails.

Typically the "Glock kB" (You should Google this.) blows the slide off the frame rails, and blows the mag out the butt of the gun. Sometimes the case failure results in splitting the receiver assembly.

Google "Glock kB" -- Dean Speer. This is pretty well documented stuff.

quote:

Originally posted by fredj338:

quote:

Originally posted by 45-70 Govt.:
OK then . . . take the barrel out of your Glock and drop a round in the chamber. Have a look at how the feed ramp cuts beyond the web of the case.

Then rattle the case in the chamber. You'll note that the brass fits loose, really loose. That's "partially supported."

The brass expands when fired. Then it's resized in reloading. This work hardens the brass.

Since the brass is not supported in the chamber on the Glock, and since the feed ramp cuts beyond the web in the brass, reloads in a Glock -- particulary 9mm and 40 Smith high pressure rounds loaded with fast burning propellant like Red Dot -- reloaded brass becomes work hardened and fails.

Typically the "Glock kB" (You should Google this.) blows the slide off the frame rails, and blows the mag out the butt of the gun. Sometimes the case failure results in splitting the receiver assembly.

Google "Glock kB" -- Dean Speer. This is pretty well documented stuff.

SO are you implying it is not safe to use handloads in a GLock? Mine has seen almost nothing but for 5Krds, from mild to wild & it is still in one piece. Not my fav. pistol, but totally safe w/ sane handloads.
FWIW, loose fitting rounds do not imply an unsupported chamber. It just means the chamber is slightly oversize, which does cause some over expansion & resizing, but as long as your loads aren't nuclear, the brass still lasts along time.