RON L here = SERESURPLUS
If you have Looked at all the Internal parts with the side plate off, I'd say if you did not see any worn or damaged parts, you have a Problem! Timing of revolvers is critical, real precise work! I'd write to the Present Day Charter Arms and see if they are willing to do anything for you? Seeing as this is a Safety issue and It could be a lot of trouble for them in a Law Suite, you might try sending them off a Letter and see how willijg they are to help? Might find they fix it for free or near free or in some case, might just replace the gun as a good gesture? Never hurts to try, plus if not, they might be willing to tell you what parts you need and sell ya those cheap?