Mod 10-5 cylinder rotation problem

[rxg_ohio]

Bill Davis' S&W 10-5 cylinder stops rotating smoothly on one(same) chamber while firing double action match's. It stops half way through travel and requires more trigger pressure before firing. By then I have lost my sight alignment. I've used this firearm for several years w/o a hitch till now. Any helpful comments are appreciated.

 

[S&W revolverman]

Two things come to mind, but without the gun in hand, really hard to say for positive. But you could look at these two:

Bent ejector rod (rod runout) causing the cylinder to bind a little.
A burr has developed on one of the cylinder stop notches on the cylinder not allowing the cylinder stop to engage smoothly into this particular notch.

Hope this helps
chris

 

[Skip357]

look under ext. it could be dirty or endshake on cylinder.