How to Install Sako Tapered Scope Bases

Dramatically increasing aiming efficiency over traditional open sights, installing a scope on a firearm magnifies the shooter's view of the target. For a scope to hold its point of aim, or "zero," the scope bases anchoring the scope rings must be solidly mounted to the firearm's receiver. Sako tapered scope bases are engineered to accept scope rings with dovetailed mounts that lock firmly into place on the bases.

Things You'll Need

  • Gun vise
  • Firearm
  • Precision screwdrivers
  • Sako scope bases
  • Thread sealer
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Instructions

    • 1

      Place the firearm in a gun vise. Remove the plug screws from the holes in the top of the firearm's receiver with a screwdriver.

    • 2

      Align the rear and forward bases over the holes in the receiver specific to each base. For example, the configuration of holes in the forward base will be arranged differently from the configuration of mounting holes on the rear base.

    • 3

      Mount the front scope base. Apply a drop of thread sealer to each of the mounting holes in the receiver. Install the mounting screws in the holes in the receiver through the holes in the bases.

    • 4

      Tighten the base mounting screws, with a screwdriver, in a repeating pattern. The order or direction when tightening the screws does not matter provided the same pattern is followed on each pass. Tighten the screws just until snug, not tightening any of the screws completely at one time. Continue to go through the pattern and tighten the screws slightly more on each successive pass until the screws cannot be tightened further.

    • 5

      Repeat the procedure for the rear base.