[Austin W Hogan]

I have seen two Parker barrels, a PT and an L3 with what I call a "missed turn" but may very well be an inclusion or corrosion.
Both barrels showed a black line which continued for almost full circle around the inside of the bore. The seam also showed on the outside of the PT. The L3 had a wider line that I interpreted as a missing lamina in one of the bands, which was surrounded by an otherwise bright bore.
A friend once told me of hunting with an ancestor who had owned his GH. The GH ejected smoke jets under the rib with each shot. When he obtained the gun he could see light through the holes. They work until they go.

Best, Austin