Trick photography with a flash-that's a good one!!
The chambers/tenons cut on my barrels by Alan & Dan have the same appearance as the tenon threads pictured on their web site & my 20/20 vision eyes & borescope doesn't have a flash attached.
pecking order of the machining industry;
Warner Tool Co.
Model Makers
Tool & Die Makers
Machinists
Ginsmiths
The chambers/tenons cut on my barrels by Alan & Dan have the same appearance as the tenon threads pictured on their web site & my 20/20 vision eyes & borescope doesn't have a flash attached.
pecking order of the machining industry;
Warner Tool Co.
Model Makers
Tool & Die Makers
Machinists
Ginsmiths