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Zastava M76
The Zastava M76 is a military semi-automatic designated marksman rifle developed and manufactured by Zastava Arms. History The Zastava Arms Company released the M76 in the mid-1970s. Since then it became the standard issue designated marksman rifle in the Serbian army and its predecessor the Yugoslav People's Army (JNA). It was designed to fulfill the same role as the Soviet Dragunov SVD, which was to provide a designated marksman capability to the infantry platoon. During the Yugoslav Wars of the 1990s, it was used by several sides; it saw action in Croatia, Bosnia, North Macedonia and Kosovo. In Serbian service The M76 is reportedly being replaced by the Zastava M91. The Zastava M91 uses the 7.62×54mmR cartridge which is replacing the 7.92×57mm Mauser (M49/M75) cartridge in Serbian service. Design details The M76 is similar in concept to the Russian Dragunov SVD sniper/designated marksman rifle; a semi-automatic rifle using a full-power cartridge from a 10-round magazine. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescopic Sight
A telescopic sight, commonly called a scope informally, is an optical sighting device based on a refracting telescope. It is equipped with some form of a referencing pattern – known as a ''reticle'' – mounted in a focally appropriate position in its optical system to provide an accurate point of aim. Telescopic sights are used with all types of systems that require magnification in addition to reliable visual aiming, as opposed to non-magnifying iron sights, reflector (reflex) sights, holographic sights or laser sights, and are most commonly found on long-barrel firearms, particularly rifles, usually via a scope mount. Similar devices are also found on other platforms such as artillery, tanks and even aircraft. The optical components may be combined with optoelectronics to add night vision or smart device features. History The first experiments directed to give shooters optical aiming aids go back to the early 17th century. For centuries, different optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Macedonia
North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe. It shares land borders with Greece to the south, Albania to the west, Bulgaria to the east, Kosovo to the northwest and Serbia to the north. It constitutes approximately the northern third of the larger geographical Macedonia (region), region of Macedonia. Skopje, the capital and largest city, is home to a quarter of the country's population of over 1.83 million. The majority of the residents are ethnic Macedonians (ethnic group), Macedonians, a South Slavs, South Slavic people. Albanians in North Macedonia, Albanians form a significant minority at around 25%, followed by Turks in North Macedonia, Turks, Romani people in North Macedonia, Roma, Serbs in North Macedonia, Serbs, Bosniaks in North Macedonia, Bosniaks, Aromanians in North Macedonia, Aromanians and a few other minorities. The region's history begins with the Paeonia (kingdom), kingdom of Paeonia. In the la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ICAO Standard Atmosphere
The International Standard Atmosphere (ISA) is a static atmospheric model of how the pressure, temperature, density, and viscosity of the Earth's atmosphere change over a wide range of altitudes or elevations. It has been established to provide a common reference for temperature and pressure and consists of tables of values at various altitudes, plus some formulas by which those values were derived. The International Organization for Standardization (ISO) publishes the ISA as an international standard, ISO 2533:1975.International Organization for Standardization, Standard Atmosphere', ISO 2533:1975, 1975. Other standards organizations, such as the International Civil Aviation Organization (ICAO) and the United States Government, publish extensions or subsets of the same atmospheric model under their own standards-making authority. Description The ISA mathematical model divides the atmosphere into layers with an assumed linear distribution of absolute temperature ''T'' against ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repeating Rifle
A repeating rifle is a single-barreled rifle capable of repeated discharges between each ammunition reload. This is typically achieved by having multiple cartridges stored in a magazine (within or attached to the rifle) and then fed individually into the chamber by a reciprocating bolt, via either a manual or automatic action mechanism, while the act of chambering the round typically also recocks the hammer/ striker for the following shot. In common usage, the term "repeating rifle" most often refers specifically to manual repeating rifles (e.g. lever-action, pump-action, bolt-action, etc.), as opposed to self-loading rifles, which use the recoil, gas, or blowback of the previous shot to cycle the action and load the next round, even though all self-loading firearms are technically a subcategory of repeating firearms. Repeating rifles were a significant advance over the preceding single-shot, breechloading rifles when used for military combat, as they allowed a much grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gun Barrel
A gun barrel is a crucial part of gun-type weapons such as small arms, small firearms, artillery pieces, and air guns. It is the straight shooting tube, usually made of rigid high-strength metal, through which a contained rapid expansion of high-pressure gas(es) is used to propel a projectile out of the front end (muzzle (firearms), muzzle) at a high velocity. The hollow interior of the barrel is called the bore, and the diameter of the bore is called its calibre, usually measured in inches or millimetres. The first firearms were made at a time when metallurgy was not advanced enough to cast tubes capable of withstanding the explosive forces of early cannons, so the pipe (often built from staves of metal) needed to be braced periodically along its length for structural reinforcement, producing an appearance somewhat reminiscent of storage barrels being stacked together, hence the English name. History Gun barrels are usually made of some type of metal or Alloy, metal alloy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolt Thrust
Bolt thrust or breech pressure is a term used in internal ballistics and firearms (whether small arms or artillery) that describes the amount of rearward force exerted by the propellant gases on the Bolt (firearms), bolt or Breechblock, breech of a firearm action or Breech-loading weapon, breech when a projectile is fired. The applied force has both Euclidean vector#Length, magnitude and Direction (geometry, geography), direction, making it a Vector (geometric), vector quantity. Bolt thrust is an important factor in weapons design. The greater the bolt thrust, the stronger the locking mechanism has to be to withstand it. Assuming equal engineering solutions and material, adding strength to a locking mechanism causes an increase in weight and size of locking mechanism components. Bolt thrust is not a measure to determine the amount of recoil or free recoil. Calculating bolt thrust With a basic calculation the bolt thrust produced by a particular firearms cartridge can be calculated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rotating Bolt
Rotating bolt is a method of locking the breech (or rear barrel) of a firearm closed for firing. Johann Nicolaus von Dreyse developed the first rotating bolt firearm, the "Dreyse needle gun", in 1836. The Dreyse locked using the bolt handle rather than lugs on the bolt head like the Mauser M 98 or M16. The first rotating bolt rifle with two lugs on the bolt head was the Lebel Model 1886 rifle. The concept has been implemented on most firearms chambered for high-powered cartridges since the 20th century. Design Ferdinand Ritter von Mannlicher, who had earlier developed a non-rotating bolt straight-pull rifle, developed the Steyr-Mannlicher M1895, a straight-pull rifle with a rotating bolt, which was issued to the Austro-Hungarian Army. Mannlicher then developed the M1893 auto rifle which had a screw delayed bolt and later the Mannlicher M1900 operated by a gas piston. This was an inspiration for later gas operated, semi-automatic and selective fire firearms (such as th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ZASTAVA M76 Na Streľnici II Júl 2010 , a small settlement in southeastern Slovenia
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Zastava (Serbo-Croatian and Slovene for "flag") may refer to: Organizations * Zastava Arms * Zastava Automobiles ** Zastava Special Automobiles * Zastava TERVO, successor to Zastava Trucks Places *Zastava, Črnomelj Zastava (; ''Leksikon občin kraljestev in dežel zastopanih v državnem zboru,'' vol. 6: ''Kranjsko''. 1906. Vienna: C. Kr. Dvorna in Državna Tiskarna, p. 6.) is a small settlement on the Lahinja River east of Črnomelj in the White Carniola ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PSL (rifle)
The PSL (, "scoped semi-automatic rifle") is a Romanian designated marksman rifle. It is also called PSL-54C, Romak III, FPK and SSG-97 (''Scharfschützengewehr'' 1997). Though similar in appearance, mission and specifications to the SVD Dragunov, the PSL rifle is mechanically completely different as it is based on the RPK light machinegun, with its internals simply being scaled up to accommodate the more powerful 7.62×54mmR cartridge. History After Socialist Republic of Romania, Socialist Romania's refusal to join the Warsaw Pact invasion of Czechoslovakia, Invasion of Czechoslovakia, relations with the Soviet Union worsened. To counterbalance its reliance on Soviet military equipment, Romania accelerated the development of its arms industry, mostly relying on Soviet blueprints and licenses. As the Soviets were not eager to share technical information on the SVD Dragunov, a project commenced to develop the PSL. PSL rifles were originally made at the Cugir Arms Factory, Uzina M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zastava M70 Assault Rifle
The Zastava M70 ( sr-Cyrl, Застава М70) is a 7.62×39mm assault rifle developed in the Socialist Federal Republic of Yugoslavia by Zastava Arms. The M70 was an unlicensed derivative of the Soviet AK-47 (specifically the Type 3 variant). Due to political differences between the Soviet Union and Yugoslavia at the time, namely the latter's refusal to join the Warsaw Pact, Zastava was unable to directly obtain the technical specifications for the AK and opted to reverse engineer the weapon type. Although the M70 was functionally identical to the AK, it had unique in-built features that better enabled it to fire rifle grenades. These included a thicker receiver, a new latch for the dust cover to ensure it would not be jarred loose by a grenade discharge, and a folding grenade sight bracket over the rifle's gas block, which also shut off the gas system when raised. The M70 became the standard issue infantry weapon in the Yugoslav People's Army in 1970, complementing and later s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AK-47
The AK-47, officially known as the Avtomat Kalashnikova (; also known as the Kalashnikov or just AK), is an assault rifle that is chambered for the 7.62×39mm cartridge. Developed in the Soviet Union by Russian small-arms designer Mikhail Kalashnikov, it is the originating firearm of the Kalashnikov rifle, Kalashnikov (or "AK") family of rifles. After more than seven decades since its creation, the AK-47 model and its variants remain one of the most popular and widely used firearms in the world. Design work on the AK-47 began in 1945. It was presented for official military trials in 1947, and, in 1948, the fixed-Stock (gun), stock version was introduced into active service for selected units of the Soviet Army. In early 1949, the AK was officially accepted by the Soviet Armed Forces and used by the majority of the member states of the Warsaw Pact. The model and its variants owe their global popularity to their reliability under harsh conditions, low production cost (compared t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
