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Old October 24, 2013, 01:00 PM   #9
RBid
Senior Member
 
Join Date: March 10, 2012
Posts: 1,059
Glock 21 unsupported chamber

Quote:
Originally Posted by thedudeabides View Post
45 ACP doesn't need a lot of chamber support due to its very low pressures, just look at the chambers in many 1911s. Even when using +P ammo. Now if you want to try 45 Super and test your theory, you're on your own.

I think that Glock manufactured a batch of 21s a few years back that had atrocious chamber support (even for 45 ACP), fixed and buried the issue, and went on with their lives. Furthermore, I think it's based on the overall "loose fit" of Glocks that sacrifice fit and accuracy for ultimate reliability to feed and fire all ammo types.
It's true. High pressure rounds like 9, .40, 10, and .357 Sig always blow Glocks up, and they're inaccurate. That's why hostage rescue groups like CAG and FBI HRT would NEVER use a Glock... especially in .40...

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