Hello, I write from Italy.
I have a question to ask. I recently bought a S&W 686 SSR pro series:
I checked with a feeler blades to the gap between cylinder and barrel and I have on the left side 0.015 mm.(0,006 inch) space and on the right side 0.025 mm. (0,010 inch). Easily the surface of the forcing cone is not perfectly symmetrical.
The accuracy seems good anyway..
There may be problems of loss of pressure or something else?
Don't touch nothing or leave all the gap to 0.025 mm?
thanks