Ruger Single Six Magnum Serial Number History. The above chart shows the approximate first serial number shipped for. This number should be used as a point of reference. Carbine Rifle Manufactured from 1961 to 1974 Caliber. Magnum Beginning Serial Number Years of Production 1 1961 1339 1962 65061 1963 85111 1964. CRS memorandum on the NFRTR discusses amnesty issues This November 28, 2005, Memorandum by William J. Krouse click here to read it is the most comprehensive and. A1. 45 Colt. 45 ACP Production Statistics and Serial Numbers. It is not necessarily the very first serial number shipped, but. Ruger firearm was. Ruger does not necessarily produce firearms in serial number order. There are occasions when blocks of serial numbers have been manufactured out of sequence, sometimes years later. Also, within a model family the same serial number prefix may be used to produce a variety of different models, all in the same block of serial numbers. And in some cases, firearms may be stored for a length of time before they are shipped. For details on your specific serial number you may contact our Service Department 3. For serial numbers manufactured prior to our electronic records, or for an official letter confirming the details on your firearm please download and mail in the Request for Letter of Authenticity form. What is the worlds most popular firearm A lot of gun guys will immediately say 1911, AR15 or perhaps a Remington 870. I suggest that there is one weaponlets. Ruger 1022 Americas Favorite. Rifle. by Jeff Quinn. Jeff Quinn. June 25th, 2009 Click links below for video ArmsCollectors. Collectable Firearms Forums Modern, antique and collectable firearms, questions answered, gun militaria related items. Libre Office Project Timeline.