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In shooting sports, a shot grouping, or simply group, is the collective pattern of projectile impacts on a target from multiple consecutive shots taken in one shooting session. The tightness of the grouping (the proximity of all the shots to each other) is a measure of the precision of a weapon, and a measure of the shooter's consistency and skill.
For shooting sport, accuracy is the gun's ability to hit exactly what the shooter is aiming at, and precision is the ability to hit the same place over and over again in a repeatable fashion. Both are the goals of accurizing, [ 2 ] which generally concentrates on four different areas:
Harrison killed the two Taliban machine gunners with shots that took the 8.59 mm (0.338 inch) rounds almost five seconds to hit their targets, which were 900 m (980 yd) beyond the L115A3 sniper rifle's recommended range. A third shot took out the insurgents' machine gun. The rifle used was made by Accuracy International. [21]
The three main technologies employed for long-range shooting—the bolt-action rifle, telescopic rifle scope and machined cartridge ammunition—were developed in the nineteenth century. The first bolt-action rifle was produced in 1824 by the German firearms inventor Johann Nicolaus von Dreyse. The first documented telescopic rifle sight was ...
Footage released showed the rifle intentionally aiming off target so the bullets could correct their flight path. EXACTO technology is claimed to markedly extend the day and night-time range of current sniper systems. [4] [5] How the ammunition is designed to change direction in mid-air is classified. The second phase of the program was ...
Semi-wadcutter (SWC): A type of all-purpose bullet commonly used in revolvers that combines features of the wadcutter target bullet and traditional round nosed revolver bullets, and is used in both revolver and pistol cartridges for hunting, target shooting, and plinking. The basic SWC design consists of a roughly conical nose, truncated with a ...
For short-range target shooting, typically on ranges up to 50 meters, or 55 yards, with low-powered ammunition like .22 long rifle, aerodynamics is relatively unimportant, and velocities are low compared to velocities attained by full-powered ammunition.
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 ...