This part is simple, in 1964 push feeds continued the same Model 70 serial progression that started in 1936, add "G" in front in 1969. The gun control act of 1968 required a serial number, that also included at least one letter. When Classic's came out, there had been roughly 968,000 made through 1968 with no G, so Classic's started over at 1 with a G in front. In 2003 at about G380,000 Classic's joined the original 1936/push feed serial run, which was by then over 2,500,000.

Now, putting serial numbers with years after records were no longer kept, starting in 1992, can only come with 30 years of owning, buying, selling and studying the Model 70. Source? Me.

Last edited by winchester70; 11/16/17.