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  2. NRA Precision Pistol - Wikipedia

    en.wikipedia.org/wiki/NRA_Precision_Pistol

    A "short course" shoots only at 25 yards and uses a reduced-size target for the Slow Fire segment. All courses of fire at an indoor competition are typically fired at 50 feet (15 m) with appropriately scaled targets. An example outdoor 900 match would include: 2 strings of slow fire. Each string consists of 10 shots at 50 yards at a NRA B6 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. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/wiki/1951_USAF_resolution_test...

    A USAF 1951 resolution chart in PDF format is provided by Yoshihiko Takinami. This chart should be printed such that the side of the square of the 1st element of the group -2 should be 10 mm long. USAF 1951 Resolution Target Further explanations and examples; Koren 2003: Norman Koren's updated resolution chart better suited for computer analysis

  6. Telescopic sight - Wikipedia

    en.wikipedia.org/wiki/Telescopic_sight

    If a target of a known diameter of 16 inches fills just half of the total post-to-post distance (i.e. filling from sight center to post), then the distance to target is approximately 200 yards (180 m). With a target of a diameter of 16 inches that fills the entire sight picture from post to post, the range is approximately 100 yards.

  7. 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 ...

  8. Leupold & Stevens - Wikipedia

    en.wikipedia.org/wiki/Leupold_&_Stevens

    A vintage Osborne Fire Finder produced under the name "Leupold-Volpel & Co.". Leupold & Stevens was founded by the German immigrant Markus Friedrich (Fred) Leupold and his brother-in-law Adam Voelpel in 1907, under the name Leupold & Voelpel.

  9. Shooting sports - Wikipedia

    en.wikipedia.org/wiki/Shooting_sports

    Shooting sports is a group of competitive and recreational sporting activities involving proficiency tests of accuracy, precision and speed in shooting — the art of using ranged weapons, mainly small arms (firearms and airguns, in forms such as handguns, [1] rifles [2] and shotguns [3]) and bows/crossbows.