|
FN 5.7×28mm
The FN 5.7×28mm (designated as the 5.7×28 by the C.I.P. and FN 5.7x28mm NATO) is a small- caliber, high-velocity, smokeless powder, rebated rim, bottlenecked centerfire cartridge designed for handgun and personal defense weapon (PDW) uses manufactured by FN Herstal. It is similar in length to the .22 WMR (5.7×27mm) and to some degree similar also to the .22 Hornet or .22 K-Hornet. Unlike many new cartridges, it has no parent case; the complete package was developed from scratch by FN. The 5.7×28mm was developed in conjunction with the FN P90 PDW and FN Five-seven pistol in response to NATO requests for a replacement for the 9×19mm Parabellum cartridge. In 2002 and 2003, NATO conducted a series of tests with the intention of standardizing a PDW cartridge as a replacement for the 9×19mm Parabellum cartridge. The tests compared the relative merits of the 5.7×28mm cartridge and the 4.6×30mm cartridge, which was created by Heckler & Koch as a competitor to the 5.7×28 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Defense Weapon
Personal defense weapons (PDWs) are a class of firearms intended for self-defense and security rather than warfare and infantry. Most PDWs fire a small-caliber (less than ), centerfire bottleneck cartridge resembling a scaled-down intermediate rifle cartridge, essentially making them an "in-between" hybrid between a submachine gun and a carbine. The use of these rifle-like cartridges gives the PDWs much better ballistic performance ( effective range, accuracy and armor-penetrating capability) than conventional submachine guns, which fire larger-caliber but slower and less aerodynamic handgun cartridges. The low recoil of these "sub-intermediate" cartridges also makes muzzle rise on PDWs (which typically have short gun barrels) much easier to handle than short-barreled rifles, especially when shooting full-auto or in burst fires. The name describes the weapon's original conceptual role: as a compact but powerful small arm that can be conveniently carried for personal defense, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Muzzle Velocity
Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately to in black powder muskets, to more than in modern rifles with high-velocity cartridges such as the .220 Swift and .204 Ruger, all the way to for tank guns firing kinetic energy penetrator ammunition. To simulate orbital debris impacts on spacecraft, NASA launches projectiles through light-gas guns at speeds up to . Projectile velocity For projectiles in unpowered flight, its velocity is highest at leaving the muzzle and drops off steadily because of air resistance. Projectiles traveling less than the speed of sound (about in dry air at sea level) are ''subsonic'', while those traveling faster are ''supersonic'' and thus can travel a substantial distance and even hit a target before a nearby observer hears the "bang" of the shot. Projec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heckler & Koch
Heckler & Koch GmbH (HK; ) is a German defense manufacturing company that manufactures handguns, rifles, submachine guns, and grenade launchers. The company is located in Oberndorf am Neckar in the German state of Baden-Württemberg, and also has subsidiaries in the United Kingdom, France and the United States. The Heckler & Koch Group comprises Heckler & Koch GmbH, Heckler & Koch Defense, NSAF Ltd., and Heckler & Koch France SAS. The company's motto is "''Keine Kompromisse!''" (No Compromises!). HK provides firearms for many military and paramilitary units, including the SAS, KMar, the US Navy SEALs, Delta Force, HRT, Canada's Joint Task Force 2, the German KSK and GSG 9, and many other counter-terrorist and hostage rescue teams. Their products include the MP5, UMP submachine guns, the G3, HK417 battle rifles, the HK33, G36, HK416 assault rifles, the MG5, HK21 General-purpose machine guns, the MP7 personal defense weapon, the USP series of handguns, and the PSG1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HK 4
The HK4 is a pocket pistol, first introduced by Heckler & Koch in 1967. Government agencies received 12,000 pistols in the .32 ACP caliber with the designation P11 and were serial numbered 40001 to 52400. Design The HK4 is largely a refined Mauser HSc self-loading pistol. Heckler & Koch were familiar with the HSc design as many of the Heckler & Koch company founders were employees of the Mauser-Werke Oberndorf A.G. company pre- and post-WW2. Similar to the HSc, the HK4 utilizes a straight blowback action, with a double-action trigger and a slide-mounted safety. Switching between the three different centerfire chamberings (6.35mm Browning aka .25 ACP, 7.65mm Browning aka .32 ACP, 9mm short aka .380 ACP) merely requires swapping the barrel and recoil spring assembly and the magazine. Switching between the centerfire chamberings and rimfire chambering (.22 LR) also involves a further step of loosening a screw on the breech face and rotating the removable breech face to either the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
9×19mm Parabellum
The 9×19mm Parabellum (also known as 9mm Parabellum or 9mm Luger or simply 9mm) is a rimless, tapered firearms cartridge. Originally designed by Austrian firearm designer Georg Luger in 1901, it is widely considered the most popular handgun and submachine gun cartridge due to its low cost and extensive availability. It is a standard cartridge for NATO forces as well as in many non-NATO countries. Since the cartridge was designed for the Luger semi-automatic pistol, it has been given the designation of 9mm Luger by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) and the Commission internationale permanente pour l'épreuve des armes à feu portatives (CIP). A 2007 US survey concluded that "about 60 percent of the firearms in use by police are 9mm arabellum and credited 9×19mm Parabellum pistol sales with making semiautomatic pistols more popular than revolvers.Adler, Jerry, et al. "Story of a Gun." ''Newsweek'' 149.18 (30 April 2007): 36–39. MasterFILE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two North American. Established in the aftermath of World War II, the organization implemented the North Atlantic Treaty, signed in Washington, D.C., on 4 April 1949. NATO is a collective security system: its independent member states agree to defend each other against attacks by third parties. During the Cold War, NATO operated as a check on the perceived threat posed by the Soviet Union. The alliance remained in place after the dissolution of the Soviet Union and has been involved in military operations in the Balkans, the Middle East, South Asia, and Africa. The organization's motto is ''animus in consulendo liber'' (Latin for "a mind unfettered in deliberation"). NATO's main headquarters are located in Brussels, Belgium, while NATO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
22 Hornet
The .22 Hornet or 5.6×35mmR is a varminting, small-game hunting, survival and competition centerfire rifle cartridge commercially introduced in 1930. It is considerably more powerful than the rimfire .22 WMR and the .17 HMR, achieving higher velocity with a bullet twice the weight of the .17 HMR bullet. The Hornet also differs very significantly from these in that being a centerfire cartridge makes it reloadable, and thus much more versatile. It was the smallest commercially available .22 caliber centerfire cartridge until the introduction of the FN 5.7×28mm. The .22 Hornet fills the gap between such popular varmint/predator cartridges as the .22 WMR and the .223 Remington. In regard to muzzle velocity, muzzle energy and noise, it is well suited to vermin and predator control in relatively built-up areas. History Prior to the development of the modern .22 Hornet, there was a conceptually similar but physically different cartridge by the same name invented in the 189 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guns & Ammo
''Guns & Ammo'' is a magazine dedicated to firearms, hunting, competitive shooting, reloading, and other shooting-related activities in the United States. The magazine offers reviews on firearms, ammunition, optics and shooting gear. Also included are historical articles, gun collecting, self-defense features, celebrity interviews and information relating to gun politics. In addition to departments, each issue contains several featured articles and profiles of the firearms industry, as well as technical evaluations new products. It has a total print and digital readership of 10.2 million per month, including a pass-through rate of 12 per copy according to MediaMark Research Inc. (MRI). Guns & Ammo is published on a monthly basis. History ''Guns & Ammo'' was founded by Robert E. Petersen in 1958 and has featured famed gunwriters such as P.O. Ackley, Craig Boddington, Jeff Cooper, Garry James, Bill Jordan, Elmer Keith, Bob Milek, Patrick Sweeney, Col. Townsend Whelen and John Wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Defense Weapon
Personal defense weapons (PDWs) are a class of firearms intended for self-defense and security rather than warfare and infantry. Most PDWs fire a small-caliber (less than ), centerfire bottleneck cartridge resembling a scaled-down intermediate rifle cartridge, essentially making them an "in-between" hybrid between a submachine gun and a carbine. The use of these rifle-like cartridges gives the PDWs much better ballistic performance ( effective range, accuracy and armor-penetrating capability) than conventional submachine guns, which fire larger-caliber but slower and less aerodynamic handgun cartridges. The low recoil of these "sub-intermediate" cartridges also makes muzzle rise on PDWs (which typically have short gun barrels) much easier to handle than short-barreled rifles, especially when shooting full-auto or in burst fires. The name describes the weapon's original conceptual role: as a compact but powerful small arm that can be conveniently carried for personal defense, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handgun
A handgun is a short- barrelled gun, typically a firearm, that is designed to be usable with only one hand. It is distinguished from a long gun (i.e. rifle, shotgun or machine gun, etc.), which needs to be held by both hands and also braced against the shoulder to be used properly. The two most common types of handguns in modern times are revolvers and semi-automatic pistols, although other types such as derringers and machine pistols also see infrequent usage. Before commercial mass production, handguns were often considered a badge of office, comparable to a ceremonial sword. As they had limited utility and were more expensive than the long guns of the era, the few who could only afford to purchase them carried these handguns. However, in 1836, Samuel Colt patented the Colt Paterson, the first practical mass-produced revolver, which was capable of firing five shots in rapid succession and very quickly became a popular defensive weapon, giving rise to the saying, "God cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cartridge (firearms)
A cartridge or a round is a type of pre-assembled firearm ammunition packaging a projectile (bullet, shot, or slug), a propellant substance (usually either smokeless powder or black powder) and an ignition device (primer) within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for the practical purpose of convenient transportation and handling during shooting. Although in popular usage the term "bullet" is often informally used to refer to a complete cartridge, it is correctly used only to refer to the projectile. Cartridges can be categorized by the type of their primers – a small charge of an impact- or electric-sensitive chemical mixture that is located: at the center of the case head (centerfire); inside the rim ( rimfire); inside the walls on the fold of the case base that is shaped like a cup (cupfire, now obsolete); in a sideways projection that is shaped like a pin (pinfire, now obsolete); or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
