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The Type 93 13 mm heavy machine gun (Japanese: 九三式十三粍機銃 Kyū-san Shiki Jū-san Mirimētoru Kijū), known to the Imperial Japanese Army as the Type Ho 13 mm AA machine cannon (Japanese: ホ式十三粍高射機関砲 Ho Shiki Jū-san Mirimētoru Kōsha Kikanhō), was a license-built version of the Hotchkiss M1930 machine gun used by the Empire of Japan during the Second Sino ...
Development of the R-13 was authorised by the Soviet Supreme Council on 25 July 1955 for use on the Project 629 and Project 658 submarines. The design work was started by OKB-1 under Sergei Korolev before being transferred to CB Miasskoe engineering / Makeyev Rocket Design Bureau (chief designer - Viktor Makeyev).
The 13.2 × 92 mm SR, also known as Mauser 13.2 mm TuF (German: Tank und Flieger; literally "tank and aircraft", historical military designation), is a semi-rimmed rifle and machine gun cartridge developed by the German Empire for anti-tank and anti-aircraft use which was introduced during World War I.
The 7mm Winchester Short Magnum (also known as the 7mm WSM) is a centrefire cartridge developed in partnership with Browning Arms Company and Winchester ammunition, making its debut and introduced to the shooting public in 2001.
In C.I.P.-regulated countries every rifle cartridge combo has to be proofed at 125% of this maximum C.I.P. pressure to certify for sale to consumers. This means that 7.62×54mmR-chambered arms in C.I.P.-regulated countries are currently (2014) proof tested at 487.50 MPa (70,706 psi) PE piezo pressure.
Shell: HE: Shell weight: 202 pounds (92 kg) Calibre: 7.2 inches (182.9 mm) Breech: Welin screw & asbury mech: Carriage: Box trail: Elevation: 0° to 45° Traverse: 4° left & right: Rate of fire
The QF 3.7-inch AA was Britain's primary heavy anti-aircraft gun during World War II.It was roughly the equivalent of the German Flak 8.8 cm and American 90 mm, but with a slightly larger calibre of 3.7 inches, approximately 94 mm. Production began in 1937 and it was used throughout World War II in all theatres except the Eastern Front.