Think I have figured it out. With no cases in the cylinder, I can move the cylinder forward and back. It goes from having a cylinder gap with the barrel when I push it back, to having no cylinder gap when I push it forward. So the case rims are causing the cylinder to move forward, eliminating the cylinder gap. End Shake, Yes? So now the question is: can a local good gunsmith fix this, or is this a job for the Smith and Wesson repair shop? Thanks.

Don

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