Last three digits of the gun’s serial number stamped on itsįront face, close to the cylinder base pin hole. About March 1961 Ruger began to produce these Magnum Only Put in a special serial number range of their own beginning withģ00000 and ending at 340XXX. In early 1960 the Magnum Only guns were also madeĪvailable with varnished walnut grip panels. They were roll-marked “RUGER SINGLE-SIX WIN.22 RF MAG.
22 “Magnum Only” around June of that same year.īarrels, round loading gates, checkered black hard rubber grips,Īnd no firing pin groove in the rear of the cylinder. Ruger introduced its Single-Six single action revolver in RUGER OLD MODEL SINGLE-SIX “MAGNUM ONLY” REVOLVERS