Just picked up a nib M48-7 "classic" 4" unfortunately I believe there's an issue out of the gate. Wobbling of the extractor rod is immediately noticeable when spun, rod hangs up at times when pushed back as to extract shells I haven't shot it yet and cylinder is sticky to open. The cylinder gap to the eye looks consistenly the same and with hammer pulled back cylinder rotates without hangup. I'm not comfortable doing repairs myself so I do believe gun needs to return home to get corrected a shame to send out a new gun I have a 66 at Smith now 3 months already so I'm sure its gonna be gone for sometime. Thanks I appreciate any help or advice on this. DNJ6... Serial number.