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Old 07-13-2012, 06:14   #14
Gene Econ
Quiet Professional
 
Join Date: Jul 2005
Location: Lacey Washington
Posts: 737
Quote:
Originally Posted by Iraqgunz View Post
No, I mean specifically 5 cases of primers that have blown back into the upper and getting into the carrier key. In all the cases that I examined the ammo was either M855 or M193. All the chambers that I checked were in fact not up to 5.56 specs.
OK -- now I am curious.

What process did you use to inspect the chambers and how are you sure the chamber was the problem and not the gas system / timing?
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