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Install factory scope rail on Older Ruger MK II

Discussion in 'Maintenance & Gunsmithing' started by chuckc, Apr 17, 2014.

  1. chuckc

    chuckc SW Wash. State New Member

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    Does anyone know the drill/thread depth for the three holes that are needed to install the factory scope mounting rail on an older Ruger MK II (target) pistol?
    I am sure the hole further back (rear) is tapped clear through the receiver, but the forward two seem to be blind holes. Obviously don't want to go into the bbl. or chamber.
    Appreciate any advice.
    thanks
    CFC