Rifle::rifles    Bullet::barrel    Which::rifling    Century::first    Accuracy::range    Firing::fired

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Evolution of the modern rifle:
Top: Baker rifle, an early 19th-century flintlock rifle
Second: M1903 Springfield, an early 20th-century bolt-action rifle
Third: АК-47, a mid-20th-century gas-operated, magazine-fed automatic rifle
Fourth: AR-15, a mid 20th-century magazine-fed, semi-automatic rifle

A rifle is a firearm designed to be fired from the shoulder, with a barrel that has a helical groove or pattern of grooves ("rifling") cut into the barrel walls. The raised areas of the rifling are called "lands," which make contact with the projectile (for small arms usage, called a bullet), imparting spin around an axis corresponding to the orientation of the weapon. When the projectile leaves the barrel, this spin lends gyroscopic stability to the projectile and prevents tumbling, in the same way that a properly thrown American football or rugby ball behaves. This allows the use of aerodynamically-efficient pointed bullets (as opposed to the spherical balls used in muskets) and thus improves range and accuracy. The word "rifle" originally referred to the grooving, and a rifle was called a "rifled gun." Rifles are used in warfare, hunting and shooting sports.

Typically, a bullet is propelled by the contained deflagration of an explosive compound (originally black powder, later cordite, and now nitrocellulose), although other means such as compressed air are used in air rifles, which are popular for vermin control, hunting small game, formal target shooting and casual shooting ("plinking").

Rifle sections
Intro  Terminology  Historical overview  19th century  20th century  3D printed rifle  Youth rifle  Technical aspects  See also  References  External links  

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