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Accurizing. Ruger 10/22 carbines, before accurizing (top) and after (below). Externally visible changes are the target-style stock, the more vertical thumbhole grip, the free-floated bull barrel, and a muzzle brake. Accurizing is the process of improving the accuracy and precision of a gun (firearm or airgun).
Internal ballistics (also interior ballistics), a subfield of ballistics, is the study of the propulsion of a projectile. In guns, internal ballistics covers the time from the propellant 's ignition until the projectile exits the gun barrel. [1] The study of internal ballistics is important to designers and users of firearms of all types, from ...
Rifling of a 105 mm Royal Ordnance L7 tank gun Conventional rifling of a 90 mm M75 cannon (production year 1891, Austria-Hungary) Rifling in a GAU-8 autocannon. Rifling is the term for helical grooves machined into the internal surface of a firearms's barrel for imparting a spin to a projectile to improve its aerodynamic stability and accuracy.
Antique firearms. Referencing the elite pastimes of hunting and writing, this Turkish ceremonial jeweled rifle set includes a dagger, pen case, penholder with pen, penknife, cleaner, and a spoon-all conveniently housed within the rifle butt, Walters Art Museum. An antique firearm is a term used to describe a firearm that was designed and ...
Parker Bros (also known at various times as Parker Brothers Manufacturing Company, Parker Brothers Guns, and Parker Bros. Shotguns) was an American firearms firm, mostly producing shotguns from 1867 to 1942. During these years, approximately 242,000 guns were produced in various grades, and are widely considered the finest and most collectible ...
A muzzle brake or recoil compensator is a device connected to, or a feature integral (ported barrel) to the construction of, the muzzle or barrel of a firearm or cannon that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. [ 1 ] Barrels with an integral muzzle brake are often said to be ported.
Conventional eight groove rifling on the left, and octagonal polygonal rifling on the right. Polygonal rifling (/ p ə ˈ l ɪ ɡ ə n əl / pə-LIG-ə-nəl) is a type of gun barrel rifling where the traditional sharp-edged "lands and grooves" are replaced by less pronounced "hills and valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile.
Bushmaster XM-15. The Bushmaster XM-15 series (or XM15[3]) is a line of AR-15 style semi-automatic rifles and carbines manufactured by Bushmaster Firearms International, LLC. [2] Variants include the Bushmaster M4-type Carbine, Patrolman series, QRC series, Bushmaster XM15-E2S, and the Carbon 15 line. [2][5]