Thanks Roy. But actually I'm putting it down to experience...AND it still gave me more experience with the colour case hardening process and everything else I continue to strive to perfect in my restoring.

Joe made a fair point. Don't risk buying a gun with a bulge in it...ESPECIALLY right next to the forcing cones...further up where there is less pressure is slightly less risky...but none-the-less. I still have my fingers etc...

Cheers

T