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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. 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 ...

  4. 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.

  5. Shooting range - Wikipedia

    en.wikipedia.org/wiki/Shooting_range

    Outdoor air rifle ranges can have a fixed distance such as 10 metres (11 yd) or 25 metres (27 yd) or be an area for the practice of the sport of field target shooting, where reset metal targets are placed in natural surroundings at various distances and elevations, with a pellet trap behind the target. Small-bore rifle

  6. 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 ...

  7. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    Firstly, estimating the distance to the target is critical at longer ranges, because the difference in the point of impact between 400 and 500 yd (460 m) is 25–32 in (depending on zero), in other words if the shooter estimates that the target is 400 yd away when it is in fact 500 yd away the shot will impact 25–32 in (635–813 mm) below ...

  8. 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 ...

  9. Deflection (ballistics) - Wikipedia

    en.wikipedia.org/wiki/Deflection_(ballistics)

    This technique is necessary when the target will have significantly displaced its position during the time the projectile would take to reach the target, which can become the case over very long distances (e.g. a long sniper shot), due to fast moving targets (e.g. aerial dogfight against an opposing aircraft, or anti-aircraft fire against ...