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The PTRS-41 (''ПротивоТанковое Ружьё Симонова'', or "Simonov anti-tank rifle"〔 ) is the semi-automatic analog of the PTRD anti-tank rifle. ==Design== The PTRS-41 was produced and used by the Soviet Union during World War II. In the years between the World Wars, the Soviet Union began experimenting with different types of armour-piercing anti-tank cartridges. Finding the 12.7×108mm insufficient, they began development of what would become the 14.5×114mm armour piercing round. Rukavishnikov developed an antitank rifle (:ru:Противотанковое ружьё Рукавишникова) designated M1939 to accommodate this cartridge, but it didn't have large success because of some constructive issues, a sufficient number of more effective anti-tank guns in the Red Army, and high expectations about new German tank armour. In 1941, the loss of huge amounts of anti-tank artillery created a need for a stop-gap anti-tank weapon, so famous USSR weapons designers such as Vasily A. Degtyaryov and Sergei G. Simonov designed two anti-tank rifles. Both were considered more simple and suitable to wartime production than an updated Rukavishnikov rifle. Simonov used elements of his 1938 design, a 7.62-mm automatic rifle. The five round magazine was loaded into the receiver and held under pressure by a swing magazine underneath. On firing the last round, the bolt is held open, and the magazine release catch can be operated only when the bolt is locked back. The gas-operated PTRS has a tendency to jam when dirty, and the 14.5 mm cartridge produces significant residue, blocking the gas port. The 14.5 mm armour-piercing bullet has a muzzle velocity of 1013 m/s and devastating ballistics. It can penetrate an armour plate up to 40 mm thick at a distance of 100 meters.〔 In 1943 Simonov used a scaled down PTRS-41 design for the SKS-45, that would accommodate the new 1943 designed M/43 7.62x39mm cartridge. 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「PTRS-41」の詳細全文を読む スポンサード リンク
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