I think I got those dates correct, but the experts who post here should be along in a little while to confirm or correct me. A converted Old Model is generally not as desirable and is valued less. Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy and longevity. The vast majority of the Old Model owners here (including me) prefer their Old Model Ruger single actions to be unconverted. 44 Special cartridges, which deliver superb accuracy and milder recoil. 22s), and a free conversion was offered to anyone who who sent in their Old Model (made prior to 1974). Hopefully it is an 'unaltered' 3 screw - meaning that after 1973 the lock work was changed to the transfer bar safety system on the New Model Blackhawks (and Single Six. Mark is correct about the dates of manufacture for the 5 digit serial numbered guns, except some were made in late 1963 according to the manufacturer's website. Creepshots discord 44 Magnum Commemorative Blackhawk New Model single-action. (three screw on the side of the frame by the cylinder) It looks pretty nice, but more clear closeups will help the other members here with their assessment. If you reload, you can even reload 32-20 in. That Ruger pictured is what's known as an 'Old Model 3 Screw' Super Blackhawk.
