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A combat shotgun is a shotgun that is intended for use in an offensive role, typically by a military force.〔 The earliest shotguns specifically designed for combat were the trench guns or trench shotguns issued in World War I. While limited in range, the multiple projectiles typically used in a shotgun shell provide increased hit probability unmatched by other small arms.〔 == History == While the sporting shotgun traces its ancestry back to the fowling piece, which was a refinement of the smoothbore musket, the combat shotgun bears more kinship to the shorter blunderbuss. Invented in the 16th century by the Dutch, the blunderbuss was used through the 18th century in warfare by British, Austrian, and Prussian regiments, as well as in the American colonies. As use of the blunderbuss declined, the United States military began loading smaller lead shot in combination with their larger bullets, a combination known as "buck and ball". The buck and ball load was used extensively by Americans at the Battle of New Orleans in 1814 and was partially responsible for the disparate casualty rates between American and British forces. The advantage of this loading was that it had a greater chance of hitting the enemy, thus taking wounded soldiers out of a fight. The disadvantage of this load was that the buckshot did not cause as severe wounds at longer ranges, and contemporary accounts show many of the British wounded recovering quickly as they had been struck by the buckshot rather than the ball. Fowling pieces were commonly used by militias, for example during the Texas Revolution. However, buck and ball worked as well or better in standard or even rifled muskets. Buck and ball loads were used by both sides of the American Civil War, often by cavalry units.〔 The development of the repeating pump-action shotguns in the 1890s led to their use by US Marines in the Philippines insurrections and by General "Black Jack" Pershing's pursuit of Pancho Villa, and "riot" shotguns quickly gained favor with civilian police units, but the modern concept of the combat shotgun was fully developed by the American Expeditionary Forces during World War I. The ''trench gun'', as it was called, was a short-barreled pump action shotgun loaded with 6 rounds containing antimony hardened 00 buckshot, and equipped with a bayonet. The M1897 and M1912 also could be slam fired: the weapon having no trigger disconnector, shells could be fired one after the other simply by working the slide if the trigger was held down. When fighting within a trench, the shorter shotgun could be rapidly turned and fired in both directions along the trench axis.〔 The shotguns elicited a diplomatic protest from the German government, claiming the shotguns caused excessive injury, and that any troops found in possession of them would be subject to execution. The US Government rejected the claims, and threatened reprisals in kind if any US troops were executed for possession of a shotgun. The shotgun was also well suited for house-to-house fighting. An example of this effectiveness is an event from September 27, 1918. Sergeant Fred Lloyd, armed with a Winchester Model 1897 trench gun, single-handedly retook a German-held French village, routing 30 German soldiers.〔 The shotgun was used by Allied forces and Allied supported partisans in all theaters of combat in World War II, and both pump and semi-automatic shotguns are currently issued to all branches of the US military; they have also been used in subsequent conflicts by French, British, Australian, and New Zealand forces, as well as many guerrillas and insurgents throughout sub-Saharan Africa, Latin and South America, and Southeast Asia.〔 Six different model of shotguns were accepted in the US army during World War II, the most popular being the M97 and M1912. One disadvantage of using a shotgun in the Pacific Theatre was the way of carrying the shotshells. The standard rifle pouches that carried shotshells were small, only about 30 rounds if carried vertically. Some Marines carried the shells in SL-3 grenade vests from World War I, but these vests were hard to come by, also used were modified bandoliers and whatever came to hand or could be improvised. Another disadvantage was paper-hulled shotshells, which would swell when wet, and not fit into the chamber even after drying out. Military-issue shotshells were usually made entirely of brass to avoid this problem, until the advent of plastic hulls. Gen Douglas MacArthur attempted to restrict the use of shotgun even though the shotgun had proven its worth amongst the Marines in the Pacific War during close combat in trench and jungle fighting. General Alexander Patch was seen being armed with a Winchester shotgun when he personally led an attack in Guadalcanal.〔 In the jungle warfare during the Malayan Emergency, the British Army and local forces of Malaysia used shotguns to great effect due to limited space in the jungles and frequent close combat. In the Vietnam War, the shotgun was used as an individual weapon in the American army during jungle patrol and urban warfare like the Tet Offensive. During the Somalian conflict in 1992, the US task forces tested out a new type of Remington shotgun called Ciener Ultimate Over/Under, which was an under-barrel attachment for the standard M16 variants during Operation Gothic Serpent. The idea was for a soldier in an entry team to be able to breach a locked door with the shotgun and then immediately switch to the assault rifle to clear the room. According to the Army Rangers, their verdict was positive for this new type of breaching gun. In operations in post-invasion Iraq, US forces used their combat shotguns to clear out suspected insurgent hideouts in house to house fighting.〔 One notable experimental shotgun used in limited numbers during Operation Enduring Freedom is the XM26 for breaching doors or close-quarter battle (CQB). In modern times, with Mechanized Infantry tactics armed forces don't need to "march to battle" as in earlier conflicts. Because of this, they are able to omit the difficult choice of selecting only one weapon in order to save weight. This allows the individual soldier to carry a shotgun as well as an assault rifle during battle. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「combat shotgun」の詳細全文を読む スポンサード リンク
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