Re: Smith & Wesson revolver question
.003 is right. gotta check the head space now. If everything lines up and the headspace is right (.060-.074 for 38sp, .060-.070 for 357) then you have a end shake issue b/c you getting a forward motion on the cylinder when the thumb piece is pushed forward I bet the cylinder is binding on the forcing cone when the thumb piece is pushed but its also making the bolt fall short of being flush with the thumb screw.
If the cylinder is not binding on the forcing cone when the thumb piece is pushed ie still at .003 then the ejector rod is short.
Only cowards shoot with their eyes closed....