How to Measure for Rifle Scope Covers

Rifle scopes need protection from objects and moisture. Adding a cover to your scope keeps mist and dew from settling on the rear and front lenses and obscuring your vision through the scope. When you are walking through dense or brushy areas to get to your deer stand or blind, twigs or branches can brush against the scope and scratch the lens. Vines and brush can catch on your scope and change the windage and distance settings, resulting in a scope that is incorrectly sighted. A rifle scope cover provides complete protection.

Things You'll Need

  • Tape measure
  • Calculator
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Instructions

    • 1

      Place the tip of a tape measure on the rear of the scope. Stretch the tape measure to the front of the scope. Read the measurement in inches. This is your scope length.

    • 2

      Place the tip of the measuring tape on one side of the scope front. Stretch the measuring tape to the opposite side to measure the outside diameter. Read the measurement in inches. For this example, we will use a 4-inch measurement.

    • 3

      Multiply the outside diameter in inches by 25.4 to obtain the measurement in millimeters. For example, multiply 4 by 25.4 to get 101.6 millimeters for the outside diameter.

    • 4

      Order or purchase a scope cover that matches or slightly exceeds your measurements for length in inches and width in millimeters.