Welcome to the new PGCA Forum! As well, since it
is new - please read the following:
This is a new forum - so you must REGISTER to this Forum before posting;
If you are not a PGCA Member, we do not allow posts selling, offering or brokering firearms and/or parts; and You MUST REGISTER your REAL FIRST and LAST NAME as your login name.
To register: Click here..................
If you are registered to the forum and keep getting logged
out: Please
Click Here...
Honing or lengthened chambers would be the likely cause at that location. I once owned a GHE 12 which developed a bulge in the chamber when I was using a set of chambermates in 28ga. The "o" ring on the insert failed and the pressure was essentially trapped within the chamber. I found out later that the previous owner had lengthened the chambers to 2.75". That was a long time ago, way before I knew anything about barrel modifications.
Threaded Mode