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  2. Temporary adjustments of theodolites - Wikipedia

    en.wikipedia.org/wiki/Temporary_adjustments_of...

    To obtain an accurate clear sighting, the cross hairs should be in focus; adjust the eyepiece to do this. Focusing of eyepiece lens For focusing of the eye piece, point the telescope to the sky or hold a piece of white paper in front of telescope. Move the eye-piece in and out until a distinct sharp black image of the cross-hairs is seen.

  3. Sighting in - Wikipedia

    en.wikipedia.org/wiki/Sighting_in

    Larger diameter groups indicate reduced hit probability on smaller targets at that range and suggest groups with a larger number of shots may provide better estimates of required adjustments. Sighting in is most effective from a stable shooting position allowing the shooter to relax while the firearm is supported on a bench rest or on a sandbag ...

  4. Leupold & Stevens - Wikipedia

    en.wikipedia.org/wiki/Leupold_&_Stevens

    Leupold and Stevens Mark 6 scope with variable magnification 3-18x44mm, mounted on a M24 SWS. IDF M24 SWS with Leupold Mark 6 3-18x44mm sniper scope. Leupold FX-II Ultralight scope on a Ruger 77/44. The company's riflescopes are used by organizations such as the United States Army, the Secret Service and the Navy SEALs. [13]

  5. Milliradian - Wikipedia

    en.wikipedia.org/wiki/Milliradian

    Similarly, an adjustment click on a scope with 0.2 mrad adjustment will move the point of bullet impact 2 cm at 100 m and 4 cm at 200 m, etc. When using a scope with both mrad adjustment and a reticle with mrad markings (called a mrad/mrad scope), the shooter can spot his own bullet impact and easily correct the sight if needed.

  6. SUSAT - Wikipedia

    en.wikipedia.org/wiki/SUSAT

    SUSAT was the primary sighting system for the British Army's SA80 series weapons. [1] It was also used with L108 and L110 light machine guns, and mounted to L7 and L111 machine guns.