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SPP1

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in water, 17 metres (56 ft) at depth of 5 metres (16 ft); 11 metres (36 ft) at depth of 20 metres (66 ft);

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6-410: SPP1 or SPP-1 may refer to: SPP-1 underwater pistol , a USSR firearm made for Soviet frogmen Secreted phosphoprotein 1 , a human gene product Suppressor of Pericarp Pigmentation 1 , a maize gene implied in the phlobaphene metabolic pathway [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with

12-480: Is 145 millimetres (5.7 in) long and weighs 17.5 grams (0.62 oz). The SPP-1 has four barrels, each containing one cartridge. Its ammunition comes as a magazine of four cartridges which is inserted into the pistol's breech. Its barrel is not rifled ; the fired projectile is kept in line by hydrodynamic effects. As a result, it is somewhat inaccurate when fired out of water. A double-action firing mechanism fires one cartridge sequentially for each pull of

18-435: The cavity sooner. Once the projectile is no longer supercavitating , hydrodynamic drag increases greatly, and the projectile becomes unstable. Lethal range is defined as the range from which it can easily penetrate a padded underwater suit or a 5 millimetres (0.20 in) thick glass faceplate. It is manufactured by TOZ (Tulsky Oruzheiny Zavod/ Тульский Оружейный Завод) Tula Arms Plant , and exported by Rosoboronexport ,

24-542: The same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=SPP1&oldid=1125302391 " Category : Letter–number combination disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages SPP-1 underwater pistol The SPP-1 underwater pistol

30-500: The trigger. When all four cartridges are spent, the gun can be reloaded above or below water. The SPP-1M pistol is essentially the same as the SPP-1, with the following differences: The weapon was designed by Vladimir Simonov , the cartridge by Pyotr Sazonov and Oleg Kravchenko . Simonov also designed the APS amphibious rifle . Depth reduces range because the higher pressure closes

36-557: Was made in the Soviet Union for use by Soviet frogmen as an underwater firearm . It was developed in the late 1960s and accepted for use in 1975. Under water, ordinary-shaped bullets are inaccurate and very short-range. As a result, this pistol fires a round-based 4.5 millimetres (0.18 in) caliber steel dart about 115 millimetres (4.5 in) long, weighing 12.8 grams (0.45 oz), which has longer range and more penetrating power than speargun spears. The complete cartridge

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