rifle hunting

A rifle is a single-person portable, long-barrelled firearm designed for accurate shooting, typically to be held with both hands and braced against the shooter's shoulder for stability during firing, and with a barrel that has a helical pattern of grooves ("rifling") cut into the bore wall. The term was originally rifled gun, with the verb "rifle" referring to the early modern machining process of creating groovings with cutting tools. The modern noun "rifle" is often used for any long-shaped handheld ranged weapon designed for well-aimed discharge activated by a trigger (e.g. personnel halting and stimulation response rifle, which is a laser dazzler).
Like all typical firearms, a rifle's projectile (bullet) is propelled by the contained deflagration of a combustible propellant 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, small game hunting, competitive target shooting and casual sport shooting ("plinking").
The distinct feature that separates a rifle from the earlier smoothbore long guns is the rifling within its gun barrel. The raised areas of a barrel's rifling are called "lands", which make contact with and exert torque on the projectile as it moves within the bore, imparting a spin around its longitudinal axis. When the projectile leaves the barrel, this spin persists and lends gyroscopic stability to the projectile due to conservation of angular momentum, preventing yawing and tumbling in flight, in the same way that a spirally thrown American football or rugby ball behaves. This allows the use of more elongated and aerodynamically-efficient bullets (as opposed to the spherical balls used in muskets) and thus improves range and accuracy. Rifles are used extensively in warfare, law enforcement, hunting and shooting sports.

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