A gun is a cage or breech-loaded projectile-firing weapon. There are assorted definitions depending on the nation and annex of service. A "gun" may be acclaimed from added accoutrements in getting a crew-served weapon such as a blaster or mortar, as against to a baby arm like a burglarize or pistol, but there are exceptions, such as the U.S. Air Force's GUU5/P. At one time, land-based arms tubes were alleged cannon and sea-based argosy cannon were alleged guns. The appellation "gun" acquired into a all-encompassing appellation for any tube-launched projectile-firing weapon acclimated by sailors, including boarding parties and marines.
In avant-garde parlance, a gun is a projectile weapon application a hollow, tubular butt with a bankrupt end—the breech—as the agency of administering the projectile (as able-bodied as added purposes, for archetype stabilizing the projectile's trajectory, aiming, as an amplification alcove for propellant, etc.), and battlefront in a about collapsed trajectory.
The appellation "gun" has aswell taken on a added all-encompassing meaning, by which it has appear to accredit to any one of a amount of trigger-initiated, hand-held, and hand-directed implements, abnormally with an extending bore, which thereby resemble the chic of weapon in either anatomy or concept. Examples of this acceptance cover basic gun, attach gun, cement gun, grease gun. Occasionally, this addiction is ironically reversed, such as the case of the American M3 submachine gun which carries the appellation "Grease Gun".
Most accoutrements are declared by the blazon of butt used, the agency of firing, the purpose of the weapon, the caliber, or the frequently accustomed name for a accurate variation.
Barrel types cover rifled—a alternation of coiled grooves or angles aural the barrel—when the projectile requires an induced circuit to balance it and smoothbore if the projectile is counterbalanced by added agency or rifling is causeless or unnecessary. Typically, autogenous butt bore and the associated projectile admeasurement is a agency to analyze gun variations. Butt bore is appear in several ways. The added accepted admeasurement is advertisement the autogenous bore of the butt in decimal fractions of the inch or in millimeters. Some guns—such as shotguns—report the weapon's barometer or—as in some British ordnance—the weight of the weapon's accepted projectile.
A gun projectile may be a simple, single-piece account like a bullet, a case absolute a burden like a shotshell or atomic shell, or circuitous projectile like a sub-caliber projectile and sabot. The propellant may be air, an atomic solid, or an atomic liquid. Some variations like the Gyrojet and assertive added types amalgamate the projectile and propellant into a individual item.
In avant-garde parlance, a gun is a projectile weapon application a hollow, tubular butt with a bankrupt end—the breech—as the agency of administering the projectile (as able-bodied as added purposes, for archetype stabilizing the projectile's trajectory, aiming, as an amplification alcove for propellant, etc.), and battlefront in a about collapsed trajectory.
The appellation "gun" has aswell taken on a added all-encompassing meaning, by which it has appear to accredit to any one of a amount of trigger-initiated, hand-held, and hand-directed implements, abnormally with an extending bore, which thereby resemble the chic of weapon in either anatomy or concept. Examples of this acceptance cover basic gun, attach gun, cement gun, grease gun. Occasionally, this addiction is ironically reversed, such as the case of the American M3 submachine gun which carries the appellation "Grease Gun".
Most accoutrements are declared by the blazon of butt used, the agency of firing, the purpose of the weapon, the caliber, or the frequently accustomed name for a accurate variation.
Barrel types cover rifled—a alternation of coiled grooves or angles aural the barrel—when the projectile requires an induced circuit to balance it and smoothbore if the projectile is counterbalanced by added agency or rifling is causeless or unnecessary. Typically, autogenous butt bore and the associated projectile admeasurement is a agency to analyze gun variations. Butt bore is appear in several ways. The added accepted admeasurement is advertisement the autogenous bore of the butt in decimal fractions of the inch or in millimeters. Some guns—such as shotguns—report the weapon's barometer or—as in some British ordnance—the weight of the weapon's accepted projectile.
A gun projectile may be a simple, single-piece account like a bullet, a case absolute a burden like a shotshell or atomic shell, or circuitous projectile like a sub-caliber projectile and sabot. The propellant may be air, an atomic solid, or an atomic liquid. Some variations like the Gyrojet and assertive added types amalgamate the projectile and propellant into a individual item.
