Hi bluefish, no you didn't miss anything. My wild ass guess would be a different bolt. After my father in law passed I tried to find all the bits and pieces but a lot of the stuff fell through the cracks. I have the original invoice so I know it had that Lyman All American 4x but in a Buehler mount instead of the Conetrols that Chet Brown put on. Would really have liked to find that.

One box of parts and miscellaneous stuff had the invoice for the Mauser and a service letter from Ruger for the transfer bar trigger assembly on a three screw Single Six 22 mag that was made the same year as me. Fortunately it also contained the old trigger parts so it's back to original form. Gotta love those four distinct clicks when cocking it.