There are two different Olympic Models---early and late.
The difference is the length of the chamber---the later version being approximately .025" longer to reduce the difficulty in loading (seating the cartridge).
My early one was #10617-----my later one was #11112. I never got any closer than that. I found no mention of this in N&J (the random notes on engineering changes). (It was interesting to note there was no difference in accuracy in a test I conducted.)
Does anybody know any better about when the change came about?
Ralph Tremaine
The difference is the length of the chamber---the later version being approximately .025" longer to reduce the difficulty in loading (seating the cartridge).
My early one was #10617-----my later one was #11112. I never got any closer than that. I found no mention of this in N&J (the random notes on engineering changes). (It was interesting to note there was no difference in accuracy in a test I conducted.)
Does anybody know any better about when the change came about?
Ralph Tremaine