BSA SWEET 17 MACH412X40

Discussion in 'The Ask the Pros & What's It Worth? Forum' started by reaper69, Mar 8, 2006.

  1. reaper69

    reaper69 New Member

    Joined:
    Feb 21, 2006
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    Location:
    Thomasville,Ga
    AM LOOKING TO PURCHASE A SWEET 17 BSA SCOPE THAT IS A MACH II 412X40 THE LISTING ON THE BSA WEB PAGE HAS ONE THAT IS A MACHII AND A MACH II A/O , WHAT IS THE DIFFERENCE OR WHAT DOES THE A/O MEAN??
  2. Xracer

    Xracer *TFF Admin Staff Mediator*

    Joined:
    Feb 23, 2001
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    9,138
    Location:
    Minn-eeee-sota, ya, sure, you bet!
    Hi Reaper69.....welcome to TFF. :)

    AO or A/O stands for Adjustable Objective. It means that the rifle-scope is equipped with a focusable objective lens to allow for parallax correction at various user-selected ranges. To be parallax free, the target must be located at the distance for which the scope is focused.
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