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By the 12th century the technology was spreading through the rest of Asia, and into Europe by the 13th century 10 friv . friv. The Chinese had previously invented gunpowder in the 9th century c friv . friv. In due course, the proportion of saltpeter in the propellant was increased to maximise its explosive power does friv have viruses . friv. And to take full advantage of that power, the shrapnel came to be replaced by projectiles whose size and shape filled the barrel more closely friv and kizi . friv. In the late 15th century the Ottoman empire used firearms as part of its regular infantry friv bad ice cream . friv. The first assault rifle was introduced during World War II by the Germans, known as the StG44 friv free games . friv. It was the first firearm which bridges the gap between long range rifles, machine guns, and short range sub-machine guns friv jacksmith . friv. In firearms the high-pressure gas is generated by combustion, usually of gunpowder friv lethal race . friv. As in an internal combustion engine, the combustion propagates by deflagration rather than by detonation, and the optimal gunpowder, like the optimal motor fuel, is resistant to detonation friv mco . friv. Components Barrel Rifling of a 105 mm Royal Ordnance L7 tank gun friv old games . friv. Typically, interior barrel diameter and the associated projectile size is a means to identify gun variations frivolous will contest . friv. friv Bore diameter is reported in several ways hobo friv . friv. The more conventional measure is reporting the interior diameter (bore) of the barrel in decimal fractions of the inch or in millimetres i will die friv group . friv. The word gun is also commonly used to describe objects which, while they are not themselves weapons, produce an effect or possess a form which is in some way evocative of a handgun or long gun is juegos friv . friv. This later usage contrasts with large-calibre, high-angle, low-velocity, indirect-fire weapons such as howitzers, mortars, and grenade launchers which invariantly employ explosive-filled shells juegos friv 10 . friv. In this use, example guns include naval guns kick buttowski games friv . friv. Potentially confused with this usage are small nuclear devices capable of being fired by artillery or recoilless rifle love test friv . friv. Some of these weapons had multiple barrels which enabled volleys to be fired much faster than a normal single shot wall gun new friv . friv. A wall gun's barrel could be over 54 inches (140 cm) in length with a bore of at least 1 inch (2 quesadilla friv . friv. They fired lead shot and were used by naval boarding parties and coachmen as protection from highwaymen videos de juegos friv . friv. Mentions of wall guns are rare in such enumerations; what is more common are mentions of the swivel gun www friv 1000 . friv. Friv Games Party These, though, were shorter than wall guns, did not have stocks, and generally fired 1 or 1½-pounder round shot zuma deluxe friv . friv. . friv.