I have several Ruger revolvers that I had a question about; so I emailed ruger. Here is the question and also the answer from Ruger:
I don't have this issue with my S&Ws or Colt Trooper.Comment / question:
My Revolver is leaving a small scratch all around the back end of the cylinder. Is my gun's timing off?
Response:
The light mark on the circumference of the cylinder on your revolver is normal and is the result of the cylinder latch being in proper engagement position as the cylinder is being rotated
If you need further information, please visit our website at www.ruger.com or contact us at:
Revolvers, shotguns, rifles, 10/22 Charger Pistol: (603) 865-2442
Pistols: (928) 778-6555
Serial Number History Information: (603) 865-2424
Please note: This e-mail is sent from a notification-only address that cannot accept incoming e-mail. Please do not reply to this message.
Sincerely,
Ruger Firearms