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  2. Rifleman's rule - Wikipedia

    en.wikipedia.org/wiki/Rifleman's_rule

    This means that the rifle sight setting for any range from 0 to 500 meters is available. The sight adjustment procedure can be followed step-by-step. 1. Determine the slant range to the target. Assume that a range finder is available that determines that the target is exactly 300 meters distance. 2. Determine the elevation angle of the target.

  3. Sighting in - Wikipedia

    en.wikipedia.org/wiki/Sighting_in

    Because when using a telescopic sight, the crosshair lines geometrically resemble the X- and Y-axis of the Cartesian coordinate system where the reticle center is analogous to the origin point (i.e. coordinate [0,0]), the designated sighting-in point is known as a zero, and the act of sighting-in is therefore also called zeroing.

  4. Shot grouping - Wikipedia

    en.wikipedia.org/wiki/Shot_grouping

    Handguns are typically less accurate; at a shooting distance of 25 yd, a grouping is considered acceptable for self-defense if the shots fall within a circle of 4 to 5 inches, which is 15 to 19 MOA (equivalent to a grouping of 100-150 mm at 25 meters, which is 4-6 mils), [9] representing the shot pattern needed to hit the vital organs of a ...

  5. Shooting target - Wikipedia

    en.wikipedia.org/wiki/Shooting_target

    In fullbore target rifle within the International Confederation of Fullbore Rifle Associations (ICFRA), competitions can be held in either a short range or long range format, with distances either in yards or meters. F-Class shoots at the same targets as Palma, but during the scoring process an extra inner ring (which is half the diameter of ...

  6. Point-blank range - Wikipedia

    en.wikipedia.org/wiki/Point-blank_range

    It is thought [5] the word blanc may be used to describe a small white aiming spot formerly at the center of shooting targets. However, since none of the early sources mention a white center target, blanc may refer to empty space or zero point of elevation when testing range. [6] The term originated with the techniques used to aim muzzle ...

  7. File:50 meter rifle target.svg - Wikipedia

    en.wikipedia.org/wiki/File:50_meter_rifle_target.svg

    Target for a rifle at 50 meter shooting range. Based on ISSF technical rules. The target: total Ø = 154.4 mm. 4 ring Ø = 106.4 mm. 9 ring Ø = 26.4 mm. 10 ring Ø = 10.4 mm, height 0.75 m above the floor. Date: 17 April 2006: Source: Own work: Author: StanisÅ‚aw Skowron

  8. Bore axis - Wikipedia

    en.wikipedia.org/wiki/Bore_axis

    For example on an AR-type rifle, the mil-spec distance from center of bore to top of rail is 1.211 inches, or approximately 31 mm (1.2 in). The mount height itself, that is the distance from the top of rail to center of scope, varies, but typically lies around 36–38 mm (1.4–1.5 in) (higher and lower mounts are also readily available).

  9. File:10 m Air Rifle target.svg - Wikipedia

    en.wikipedia.org/wiki/File:10_m_Air_Rifle_target.svg

    English: Target for air rifle at 10 meter shooting range. Based on ISSF technical rules. The target: total Ø = 45.5 mm. 4 ring Ø = 30.5 mm. 9 ring Ø = 5.5 mm. 10 ring Ø = 0.5 mm, height 1.4 m above the floor.