Sawed the 16g SAC barrel that was the victim of inexpert forcing cone lengthening and honing.

[Linked Image from photos.smugmug.com]

The chamber was still 2 9/16" but the wall thickness at the end of the chamber was .087" and at the forcing cone .098".

The pilot put dents in the barrel, and long furrows in the bore; looking toward the breech

[Linked Image from photos.smugmug.com]

Barrel transected

[Linked Image from photos.smugmug.com]


Radiograph

[Linked Image from photos.smugmug.com]

The forward straight lucency is where the thinner tube was butt welded to the thicker breech section

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