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  2. Sighting in - Wikipedia

    en.wikipedia.org/wiki/Sighting_in

    Sighting in a firearm is an important test of the ability of the firearm user to hit anticipated targets with available ammunition. Pictures or silhouettes of intended targets are less suitable for sighting in than high contrast shapes compatible with the type of sights on the firearm. Contrasting circles are commonly used as sighting in ...

  3. Rifleman's rule - Wikipedia

    en.wikipedia.org/wiki/Rifleman's_rule

    The rule says that only the horizontal range should be considered when adjusting a sight or performing hold-over in order to account for bullet drop. Typically, the range of an elevated target is considered in terms of the slant range , incorporating both the horizontal distance and the elevation distance (possibly negative, i.e. downhill), as ...

  4. C79 optical sight - Wikipedia

    en.wikipedia.org/wiki/C79_optical_sight

    Sighting in a C79 sight is normally done at a range of 200 m. Windage adjustments are made on the left hand side of the base, using a flat object such as a flat-head screwdriver or a coin. The windage adjustment is intended only for the initial sighting in procedure of the C79. Elevation adjustments are made via a rotary knob and are adjusted ...

  5. Milliradian - Wikipedia

    en.wikipedia.org/wiki/Milliradian

    The horizontal and vertical adjustment ranges can be different for a particular sight, for instance a scope may have 20 mrad vertical and 10 mrad horizontal adjustment. Elevation differ between models, but about 10–11 mrad are common in hunting scopes, while scopes made for long range shooting usually have an adjustment range of 20–30 mrad ...

  6. Diopter sight - Wikipedia

    en.wikipedia.org/wiki/Diopter_sight

    The diopter sight is easy to use and usually allows for very accurate aiming, because a relative long sighting line can be used. A long sighting line helps to reduce eventual angle errors and will, in case the sight has an incremental adjustment mechanism, adjust in smaller increments when compared to a further identical shorter sighting line.

  7. Permanent adjustments of theodolites - Wikipedia

    en.wikipedia.org/wiki/Permanent_adjustments_of...

    The line of collimation or line of sight should coincide with axis of the telescope. [1] The line of sight should also be perpendicular to the horizontal axis at its intersection with the vertical axis . Also, the optical axis, the axis of the objective slide, and the line of sight should coincide. Adjustment of horizontal plate levels.

  8. Disabled Cat Develops Coolest Ski Moves to Navigate Around ...

    www.aol.com/disabled-cat-develops-coolest-ski...

    The sight is quite winning, and she’s built up a following on her social media page, “juniebskis” where she is shown skating across the floors of her home at an impressive speed, playing ...

  9. PSO-1 - Wikipedia

    en.wikipedia.org/wiki/PSO-1

    The PSO-1 has neither a focus adjustment nor a parallax compensation control. Most modern military tactical scopes with lower power fixed magnification such as the ACOG, C79 optical sight or SUSAT (intended for rapid close-intermediate range shots rather than long-range sniping) lack such features as well. Modern fixed magnification military ...