Accuracy

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When accuracy is the capability, an object or , draw attention bring it as close as possible to a previously well-defined (target) object.

In the case of firearms , target accuracy is defined by the discrepancy between the target mark in the sight image and the actual hit position of the bullet struck . The sighting image is created with open eyes using the rear sight and front sight or by sighting with a telescopic sight .

The target accuracy can be increased by a number of (sometimes simple) technical and non-technical measures:

  • the best possible knowledge of the weapon, the exact caliber and bullets
  • Experience , quick aiming while breathing calmly
  • Stabilizing the projectile with rifled barrels
  • Use of the best possible cargo components
  • Shooter training (mental, physical and weapon-related) with and without a weapon.

The ideal case would be if the line of sight, barrel core and hit location were to form a unit. However, this is prevented by external circumstances such as the trajectory bent by gravity , weather influences (wind, rain) or target errors with glaring or fading light.

In the case of bombs being dropped from the air, the aiming accuracy was or is significantly influenced by the visibility, the approach altitude, the weapons used and the experience of the dropping person. Today guided missiles , precision-guided ammunition and cruise missiles dominate .

Manual aiming

Even under ideal conditions, it is not possible to keep hands and arms completely still. They tremble with an amplitude of about 0.5 ° and a frequency around 10 Hz. The first value has a direct influence on the accuracy of a handgun. When shooting from a distance of 10 m, the scattering circle radius is 10 cm.

The second value plays an important role in photography. It determines the exposure time and magnification with which images are displayed without blurring.

Others

The Butt Report was a military report submitted in August 1941 on the effectiveness of British air strikes during World War II . The report revealed major weaknesses in the accuracy of British bomber units and was presented to the British cabinet under Winston Churchill . This contributed to the decision of the British to make area bombings on German cities ( Area Bombing Directive of February 14, 1942).

See also

  • The Circular Error Probable (German: circular error probability or scatter radius) are in a circular normal distribution to the radius of a circle, all measured values are in the 50 percent. It serves as a measure of the accuracy of a system.