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Advanced Combat Rifle
The Advanced Combat Rifle (ACR) was a United States Army program, started in 1986, to find a replacement for the M16 assault rifle. Under the stress of battle the average soldier with an M16 may shoot a target at 45 meters, but hit probability is reduced to one out of ten shots on target by 220 meters. Because of this, the ACR program was initiated in the late 1980s to create a weapon that could double the hit probability. None of the weapons tested met the criteria, and the program ended in 1990 after an expenditure of approximately US$300 million. The ACR program was preceded by older programs such as the Special Purpose Individual Weapon. Phase I and II Phase I of the program started in February 1986 when development contracts were placed with six companies: AAI Corporation, Ares Incorporated, Colt's Manufacturing Company, Heckler & Koch (H&K), McDonnell Douglas Helicopter Systems (MDHS), and Steyr Mannlicher. Two weapons were cut from the list before Phase II started. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army
The United States Army (USA) is the primary Land warfare, land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of the United States Constitution (1789).See alsTitle 10, Subtitle B, Chapter 301, Section 3001 It operates under the authority, direction, and control of the United States Secretary of Defense, United States secretary of defense. It is one of the six armed forces and one of the eight uniformed services of the United States. The Army is the most senior branch in order of precedence amongst the armed services. It has its roots in the Continental Army, formed on 14 June 1775 to fight against the British for independence during the American Revolutionary War (1775–1783). After the Revolutionary War, the Congress of the Confederation created the United States Army on 3 June 1784 to replace the disbanded Continental Army.Library of CongressJournals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assault Rifles Of The United States
In the terminology of law, an assault is the act of causing physical harm or unwanted physical contact to another person, or, in some legal definitions, the threat or attempt to do so. It is both a crime and a tort and, therefore, may result in criminal prosecution, civil liability, or both. Additionally, assault is a criminal act in which a person intentionally causes fear of physical harm or offensive contact to another person. Assault can be committed with or without a weapon and can range from physical violence to threats of violence. Assault is frequently referred to as an attempt to commit battery, which is the deliberate use of physical force against another person. The deliberate inflicting of fear, apprehension, or terror is another definition of assault that can be found in several legal systems. Depending on the severity of the offense, assault may result in a fine, imprisonment, or even death. Generally, the common law definition is the same in criminal and tort la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymer-cased Ammunition
Polymer-cased ammunition (PCA) is firearm ammunition ( cartridge) with casings made from synthetic polymer instead of the typical metallic casing. PCA is commonly seen among shotgun shells, and is considered a new alternative for long guns and handguns that potentially reduces ammunition production cost and weight. Origin The first references to the possible use of polymers in the manufacture of casings come from the early 1950s. One of the earliest is the patent filed by Jack W. Roske in 1950 and the idea was to use a metal cup joined with a polymer shell "that will be converted to gas during the firing phase to assist in propelling the projectile and thereby permit reduction in the use of the propelling powder charge". Examples * The majority of commonly found shotgun shell hulls are constructed of polymer with metal only found on the lower or rim portions of the shells. * The Steyr ACR was a notable user of polymer cased ammunition. * The US Army ARDEC developed a 5.56mm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Individual Weapons Of The U
A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, but lists are frequently written down on paper, or maintained electronically. Lists are "most frequently a tool", and "one does not ''read'' but only ''uses'' a list: one looks up the relevant information in it, but usually does not need to deal with it as a whole".Lucie Doležalová,The Potential and Limitations of Studying Lists, in Lucie Doležalová, ed., ''The Charm of a List: From the Sumerians to Computerised Data Processing'' (2009). Purpose It has been observed that, with a few exceptions, "the scholarship on lists remains fragmented". David Wallechinsky, a co-author of '' The Book of Lists'', described the attraction of lists as being "because we live in an era of overstimulation, especially in terms of information, and lists help us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Project Abakan
Project Abakan was a Soviet/Russian advanced assault rifle program in rival to the US Advanced Combat Rifle that took place between 1980 and 1994. History The 1960s ushered a new generation of assault rifles with the introduction of smaller calibers. U.S. military analysis of combat during the Second World War showed that a greater volume of fire at shorter ranges was more significant than long range accuracy. They decided that a smaller caliber would be more effective in most conditions, because the soldier could carry more ammunition. In 1963, United States adopted the M16 rifle and the smaller 5.56×45mm cartridge to replace the M14 Rifle and larger 7.62×51mm. In 1980, NATO adopted the 5.56mm as the standard-issue rifle cartridge. In 1974, the Soviet Army also replaced the AKM with the AK-74 assault rifle chambered for the new smaller 5.45×39mm caliber. In spite of the smaller caliber and many other improvements the AK-74 failed to overcome the major shortcoming of its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Objective Individual Combat Weapon
The Objective Individual Combat Weapon or OICW was the next-generation service rifle competition that was under development as part of the United States Army OICW program; the program was eventually discontinued without bringing the weapon out of the prototype phase. The acronym OICW is often used to refer to the entire weapons program. It was started in the aftermath of the Advanced Combat Rifle (or ACR) during the 1980s. Like the ACR program, it has largely been a failure in terms of achieving the specific program goals (e.g., replacing the M16) and has cost millions of dollars, but has resulted in many innovative weapons and weapon concepts as well as offshoot programs of its own. Development The central idea of the program was to develop a rifle that enabled the attacking of targets behind cover by using airburst munitions. The munitions were to be much smaller than pre-existing grenades and grenade launchers, but large enough to be effective. The idea was refined int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Infantry School
The United States Army Infantry School is a school located at Fort Benning, Georgia (U.S. state), Georgia that is dedicated to training Infantry Branch (United States), infantrymen for service in the United States Army. Organization The school is made up of the following components: * 197th Infantry Brigade (United States), 197th Infantry Brigade **2nd Battalion, 29th Infantry Regiment (United States), 29th Infantry **1st Battalion, 46th Infantry Regiment (United States), 46th Infantry **2nd Battalion, 47th Infantry Regiment (United States), 47th Infantry **3rd Battalion, 47th Infantry Regiment (United States), 47th Infantry **3rd Battalion, 54th Infantry Regiment (United States), 54th Infantry * 198th Infantry Brigade (United States), 198th Infantry Brigade (Reflagged from Infantry Training Brigade) (ITB) **1st Battalion, 19th Infantry Regiment (United States), 19th Infantry **2nd Battalion, 19th Infantry Regiment (United States), 19th Infantry **1st Battalion, 50th Infantry Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tungsten
Tungsten (also called wolfram) is a chemical element; it has symbol W and atomic number 74. It is a metal found naturally on Earth almost exclusively in compounds with other elements. It was identified as a distinct element in 1781 and first isolated as a metal in 1783. Its important ores include scheelite and wolframite, the latter lending the element its alternative name. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all known elements, melting at . It also has the highest boiling point, at . Its density is 19.254 g/cm3, comparable with that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material (under standard conditions, when uncombined), making it difficult to work into metal. However, pure single-crystalline tungsten is more ductile and can be cut with a hard-steel hacksaw. Tungsten occurs in many alloys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olin Corporation
Olin Corporation is an American manufacturer of ammunition, chlorine, and sodium hydroxide. The company traces its roots to two companies, both founded in 1892: Franklin W. Olin's Equitable Powder Company and the Mathieson Alkali Works. Accidents at Olin chemical plants have exposed employees and nearby residents to health hazards. History Founding and expansion (1890s-1900s) The company was started by Franklin Walter Olin in Niagara Falls, New York as the Equitable Powder Company. Olin created the company for the purpose of supplying the area's coal mines and limestone quarries with explosives. Olin's blasting and gunpowder company expanded into the production of cartridges in 1898. The company bought a paper manufacturer (the Ecusta Paper Company in Pisgah Forest, North Carolina),''Ecusta'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colt ACR
The Colt ACR was Colt's entry in the U.S. DoD Advanced Combat Rifle program, which concluded with the result that none of the entrants achieved enough of an improvement over the M16 to be worth the cost. The Colt ACR was not a total loss, however; the scope went on to be offered by Elcan as the C79, a version of which was eventually adopted as the M145 Machine Gun Optic used on a number of firearms, especially those from Diemaco (now Colt Canada). As well, a small batch of stocks during testing were cut-down to a smaller size similar to a CAR-15 buttstock. An example made its way to David Armstrong who used it as a basis for the design of the SOPMOD stock and another went to Magpul. Overview The main differences of the Colt ACR and the M16A2 is the distinctive furniture. The handguard included a heat-resistant inner lining, vent holes for lightening and air cooling with a thickened ring around the front end to act as a handstop. This was topped with an elevated sight tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caseless Ammunition
Caseless ammunition (CL), or caseless cartridge, is a configuration of Cartridge (firearms), weapon-cartridge that eliminates the cartridge case that typically holds the Percussion cap, primer, propellant and projectile together as a unit. Instead, the propellant and primer are fitted to the projectile in another way so that a cartridge case is not needed, for example inside or outside the projectile depending on configuration. Caseless ammunition is an attempt to reduce the weight and cost of ammunition by dispensing with the case, which is typically precision made of brass or steel, as well as to simplify the operation of repeating guns by eliminating the need to extract and eject the empty case after firing. Its acceptance has been hampered by problems with production expenses, heat sensitivity, sealing, and fragility. Its use to date has been mainly limited to prototypes and low-powered guns, with some exceptions. Internal-propellant caseless ammunition Description Olde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
