14.5 x 114 mm
Encyclopedia
The 14.5×114 mm is a heavy machine gun
Heavy machine gun
The heavy machine gun or HMG is a larger class of machine gun generally recognized to refer to two separate stages of machine gun development. The term was originally used to refer to the early generation of machine guns which came into widespread use in World War I...

 and anti-materiel rifle
Anti-materiel rifle
An anti-materiel rifle is a rifle that is designed for use against military equipment rather than against other combatants ....

 cartridge used by the Soviet Union
Soviet Union
The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

, the former Warsaw Pact
Warsaw Pact
The Warsaw Treaty Organization of Friendship, Cooperation, and Mutual Assistance , or more commonly referred to as the Warsaw Pact, was a mutual defense treaty subscribed to by eight communist states in Eastern Europe...

, modern Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

, and other countries.

It was originally developed for the PTRS and PTRD
PTRD
The PTRD-41 was an anti-tank rifle produced and used from early 1941 by the Soviet Red Army during World War II. It was a single-shot weapon which fired a 14.5x114mm round...

 anti-tank rifle
Anti-tank rifle
An anti-tank rifle is a rifle designed to penetrate the armour of vehicles, particularly tanks. The usefulness of rifles for this purpose ran from the introduction of tanks in World War I and until the Korean War...

s, but was later used as the basis for the KPV heavy machine gun
KPV heavy machine gun
The KPV-14.5 heavy machine gun is a Soviet designed 14.5x114mm-caliber heavy machine gun, which first entered service as an infantry weapon in 1949. In the 1960s the infantry version was taken out of production because it was too big and heavy...

 that formed the basis of the ZPU series
ZPU-4
The ZPU-4 is a towed, quadruple-barreled anti-aircraft gun based on the Soviet KPV 14.5 mm machine gun. It entered service with the Soviet Union in 1949 and is used by over 50 countries worldwide...

 anti-aircraft guns that is also the main armament of the BTR series of armoured personnel carrier
Armoured personnel carrier
An armoured personnel carrier is an armoured fighting vehicle designed to transport infantry to the battlefield.APCs are usually armed with only a machine gun although variants carry recoilless rifles, anti-tank guided missiles , or mortars...

s from the BTR-60
BTR-60
The BTR-60 is the first vehicle in a series of Soviet eight-wheeled armoured personnel carriers. It was developed in the late 1950s as a replacement for the BTR-152 and was seen first time in public in 1961...

 to the BTR-80
BTR-80
BTR-80 is an 8x8 wheeled armoured personnel carrier designed in the Soviet Union. Production started in 1986 and replaced the previous versions, BTR-60 and BTR-70 in the Soviet army. -Description:The Soviets based the BTR-80 on the BTR-70 APC...

.

Cartridge dimensions

The 14.5×114 mm has 42.53 ml
Litre
pic|200px|right|thumb|One litre is equivalent to this cubeEach side is 10 cm1 litre water = 1 kilogram water The litre is a metric system unit of volume equal to 1 cubic decimetre , to 1,000 cubic centimetres , and to 1/1,000 cubic metre...

 (655 grains
Grain (measure)
A grain is a unit of measurement of mass that is nominally based upon the mass of a single seed of a cereal. From the Bronze Age into the Renaissance the average masses of wheat and barley grains were part of the legal definition of units of mass. However, there is no evidence of any country ever...

 H2O) cartridge case capacity. The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt action rifles and machine guns alike, under extreme conditions.
14.5×114 mm maximum cartridge dimensions. All dimensions in millimeters (mm).

Americans would define the shoulder angle at alpha/2 ≈ 22.50 degrees. The common rifling
Rifling
Rifling is the process of making helical grooves in the barrel of a gun or firearm, which imparts a spin to a projectile around its long axis...

 twist rate for this cartridge is 455 mm (1 in 17.91 in), 8 grooves, Ø lands = 14.50 mm, Ø grooves = 14.95 mm.

According to the official guidelines the 14.5×114 case can handle up to 360 MPa (52213 psi) piezo pressure. 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.

Ammunition types

  • BS: Armor-piercing incendiary
    Incendiary device
    Incendiary weapons, incendiary devices or incendiary bombs are bombs designed to start fires or destroy sensitive equipment using materials such as napalm, thermite, chlorine trifluoride, or white phosphorus....

     original anti-tank round. The projectile weighs 64.4 grams and is 51 millimeters long with a 38.7 gram core of tungsten carbide
    Tungsten carbide
    Tungsten carbide is an inorganic chemical compound containing equal parts of tungsten and carbon atoms. Colloquially, tungsten carbide is often simply called carbide. In its most basic form, it is a fine gray powder, but it can be pressed and formed into shapes for use in industrial machinery,...

     with 1.8 grams of incendiary material in the tip. The overall round weighs approximately 200 grams and is 155 millimeters long. The projectile has a muzzle velocity of approximately 1,006 meters per second and can penetrate 40 millimeters of steel at an incidence of 60 degrees at a range of 100 meters, or 32 millimeters at a range of 500 meters.
  • B-32: Armor-piercing incendiary full metal jacket
    Full metal jacket bullet
    A full metal jacket is a bullet consisting of a soft core encased in a shell of harder metal, such as gilding metal, cupronickel or less commonly a steel alloy. This shell can extend around all of the bullet, or often just the front and sides with the rear left as exposed lead...

     round with a hardened steel
    Hardened steel
    The term hardened steel is often used for a medium or high carbon steel that has been given the heat treatments of quenching followed by tempering. The quenching results in the formation of metastable martensite, the fraction of which is reduced to the desired amount during tempering. This is the...

     core. Projectile weight is 64 g and muzzle velocity
    Muzzle velocity
    Muzzle velocity is the speed a projectile has at the moment it leaves the muzzle of the gun. Muzzle velocities range from approximately to in black powder muskets , to more than in modern rifles with high-performance cartridges such as the .220 Swift and .204 Ruger, all the way to for tank guns...

     is 1006 m/s. Armour penetration at 500 m is 32 mm of RHA
    Rolled homogeneous armour
    Rolled homogeneous armour is a type of steel which is used to armour vehicles.-Composition:Armoured steel must be hard yet impervious to shock in order to resist high velocity metal projectiles. Steel with these characteristics is produced by processing cast steel billets of appropriate size and...

     at 90 degrees.
  • BZT: Armor-piercing incendiary tracer
    Tracer ammunition
    Tracer ammunition are bullets that are built with a small pyrotechnic charge in their base. Ignited by the burning powder, the phosphorus tail burns very brightly, making the projectile visible to the naked eye...

     full metal jacket round with a steel
    Steel
    Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

     core. Projectile weight is 59.56 g and muzzle velocity is 1,006 m/s. Tracer burns to at least 2,000 m.
  • MDZ: High-explosive incendiary bullet of instant action. Projectile weight is 59.68 g.
  • ZP: Incendiary tracer round


Cartridges use lacquered steel cases and a percussion primer. Some countries also use brass cartridge cases. The propellant consists of 28.8g smokeless powder with seven tubes, designated as 5/7NA powder. Two different versions of bullet series are known, the earlier had a conventional bullet jacket with boat-tail. These had a long engraving portion that caused considerable barrel wear. The newer bullet types have a smaller engraving portion with a rounder boat-tail and were used from about 1957 on.

14.5×114mm ammunition has been manufactured in Bulgaria
Bulgaria
Bulgaria , officially the Republic of Bulgaria , is a parliamentary democracy within a unitary constitutional republic in Southeast Europe. The country borders Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, as well as the Black Sea to the east...

, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

, Egypt
Egypt
Egypt , officially the Arab Republic of Egypt, Arabic: , is a country mainly in North Africa, with the Sinai Peninsula forming a land bridge in Southwest Asia. Egypt is thus a transcontinental country, and a major power in Africa, the Mediterranean Basin, the Middle East and the Muslim world...

, Hungary
Hungary
Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

, Iraq
Iraq
Iraq ; officially the Republic of Iraq is a country in Western Asia spanning most of the northwestern end of the Zagros mountain range, the eastern part of the Syrian Desert and the northern part of the Arabian Desert....

, North Korea
North Korea
The Democratic People’s Republic of Korea , , is a country in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The Korean Demilitarized Zone serves as the buffer zone between North Korea and South Korea...

, Poland
Poland
Poland , officially the Republic of Poland , is a country in Central Europe bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine, Belarus and Lithuania to the east; and the Baltic Sea and Kaliningrad Oblast, a Russian exclave, to the north...

, Romania
Romania
Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

, Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

, and the former Czechoslovakia
Czechoslovakia
Czechoslovakia or Czecho-Slovakia was a sovereign state in Central Europe which existed from October 1918, when it declared its independence from the Austro-Hungarian Empire, until 1992...

.

Chambered Weapons

  • Slostin machine gun
    Slostin machine gun
    The Slostin was a Soviet-made self-powered Gatling type machine gun, developed directly after World War II but never put into production. It was gas-operated, with stationary breech and movable barrels, intended for 7.62x54mmR ammunition, and it was mounted on PM M1910 wheeled tripods. Each barrel...

     (Heavy Variant)
  • PTRS-41
    PTRS-41
    The PTRS-41 is the semi-automatic cousin 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, Soviet Union began experimenting with different types of armour-piercing anti-tank cartridges...

    /PTRD-41 anti-tank rifle
    Anti-tank rifle
    An anti-tank rifle is a rifle designed to penetrate the armour of vehicles, particularly tanks. The usefulness of rifles for this purpose ran from the introduction of tanks in World War I and until the Korean War...

    s
  • KPV heavy machine gun
    KPV heavy machine gun
    The KPV-14.5 heavy machine gun is a Soviet designed 14.5x114mm-caliber heavy machine gun, which first entered service as an infantry weapon in 1949. In the 1960s the infantry version was taken out of production because it was too big and heavy...

  • ZPU series
    ZPU-4
    The ZPU-4 is a towed, quadruple-barreled anti-aircraft gun based on the Soviet KPV 14.5 mm machine gun. It entered service with the Soviet Union in 1949 and is used by over 50 countries worldwide...

  • Denel NTW-20
    Denel NTW-20
    The NTW-20 is a South African anti-materiel rifle or large-calibre sniper rifle, developed by Denel's Mechem division in the 1990s. The weapon was designed by Tony Neophytou and intended for deployment against a wide variety of targets, including parked aircraft, telecommunication masts, power...

  • Gepard anti-materiel rifle
    Gepard anti-materiel rifle
    The Gepárd anti-materiel rifles are a family of Hungarian weapons designed to destroy unarmored and lightly armored targets. These long range, large caliber rifles have high accuracy as well as high muzzle velocity. The Gepárds originate from World War I anti-tank rifles developed by the Germans to...

  • 2×35 Inserted unified self-loading gun
  • Istiglal Ist-14.5
    Istiglal Anti-Material Rifle
    The Istiglal IST-14.5 Anti-Material Rifle is a recoil-operated, semi-automatic anti-material sniper rifle developed by the Azerbaijani Defense Industry. The name Istiglal means Independence in Azerbaijani.-History:...

  • Vidhwansak
    Vidhwansak
    Vidhwansak is an Indian multi-caliber anti-material rifle or large-caliber sniper rifle manufactured by Ordnance Factory, Tiruchirapalli. It can be used in the anti-materiel role for destroying enemy bunkers, lightly armoured vehicles, radar systems, communication equipment, parked aircraft, fuel...

  • Type 02/QJG 02 Heavy Machine Gun
  • Truvelo SR-14.5
    Truvelo Sniper Rifles
    Truvelo Sniper rifles are a family of bolt-action sniper rifles manufactured in South Africa by Truvelo Armoury in calibers ranging from 7.62x51mm NATO to 20x110mm.Sniper rifles manufactured:*Sniper Rifle 7.62x51mm NATO*Sniper Rifle .338 Lapua...

  • Chinese Type 56 & Type 58 Heavy Machine Guns
  • PTRS-43 (experimental anti-tank rifle)

See also

  • 12.7 × 108 mm
  • .50 BMG
    .50 BMG
    The .50 Browning Machine Gun or 12.7×99mm NATO is a cartridge developed for the Browning .50 caliber machine gun in the late 1910s. Entering service officially in 1921, the round is based on a greatly scaled-up .30-06 cartridge...

  • 20 mm caliber
    20 mm caliber
    The 20 mm caliber is a specific size of cannon or autocannon ammunition, commonly the smallest caliber which is unambiguously a cannon and not a heavy machine gun....

  • 23 mm caliber
  • 25 mm caliber
    25 mm caliber
    The 25x137 mm caliber/.98425 inch is one of the standard sizes of cannon and autocannon ammunition for NATO forces. The round itself has a length of approximately 223 mm .-Usage:...

  • 30 mm caliber
    30 mm caliber
    30 mm caliber ammunition is usually used in autocannon. Such ammunition includes NATO standard 30 × 173 mm and 30 × 113 mm and Soviet 30 × 165 mm ammunition widely used around the world....

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