To All Who Responded,

I am very grateful for your informed responses, and the time you took to answer. There is a lot of knowledge on this great forum.
A number of you guys have consistently, over the years, provided fantastic insights and experiences that has always been appreciated.

The seller, also a forum member, has been extremely helpful and generous.
This is a very nice revolver and deserves to be properly adjusted.
So, I plan to see if just tweaking the fit by backing out the barrel a degree or two solves the problem. My hope all along was that might just work. If it works, great. If not, then there's other options.

I'll follow up with the details, and more pictures.

Thanks again, and I'll be sure to revisit this thread...
Jim