The 7.92×107mm DS was a Polish 7.92 mm

anti-tank Anti-tank warfare refers to the military strategies, tactics, and weapon systems designed to counter and destroy enemy armored vehicles, particularly tanks. It originated during World War I following the first deployment of tanks in 1916, and ...

ammunition Ammunition, also known as ammo, is the material fired, scattered, dropped, or detonated from any weapon or weapon system. The term includes both expendable weapons (e.g., bombs, missiles, grenades, land mines), and the component parts of oth ...

designed specifically for use with the karabin przeciwpancerny wz.35

anti-tank rifle An anti-tank rifle is an anti-materiel rifle designed to penetrate the vehicle armor, armor of armored fighting vehicles, most commonly tanks, armored personnel carriers, and infantry fighting vehicles. The term is usually used for weapons that ca ...

. It was based on a standard 7.92×57mm Mauser cartridge, but was much longer (107 mm as opposed to the 57 mm of the Mauser cartridge) and was modified to provide higher

muzzle velocity Muzzle velocity is the speed of a projectile (bullet, pellet, slug, ball/ shots or shell) with respect to the muzzle at the moment it leaves the end of a gun's barrel (i.e. the muzzle). Firearm muzzle velocities range from approximately t ...

and hence greater penetrating power.

History

In the late 1920s, the Polish General Staff started the development of a light anti-tank weapon for the Polish infantry. In 1931, Lt. Colonel Tadeusz Felsztyn from the Institute of Armament Technology in

Warsaw Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...

started the first tests of various low-calibre cartridges. After the tests of German-made Hagler bullets proved the possibilities of such ammunition in perforation of steel plates, the National Ammunition Factory in

Skarżysko-Kamienna Skarżysko-Kamienna () is a city in northern Świętokrzyskie Voivodeship in south-central Poland by Kamienna (river), Kamienna river, to the north of Świętokrzyskie Mountains; one of the voivodship's major cities. Prior to 1928, it bore the name ...

was ordered to develop its own 7.92 mm cartridge with a

of over . After a series of tests, a new DS cartridge was proposed. The DS ammunition was based on a standard 7.92 mm cartridge used by both the Mauser rifles and the Polish Karabinek wz. 29. The length of the cartridge was extended to and the overall

weight In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition. Some sta ...

reached . After an additional series of tests, the initial copper coating was replaced with a coating made of

brass Brass is an alloy of copper and zinc, in proportions which can be varied to achieve different colours and mechanical, electrical, acoustic and chemical properties, but copper typically has the larger proportion, generally copper and zinc. I ...

(an alloy of 67% copper and 23% zinc).

Notes

References

* * * * Pistol and rifle cartridges Military cartridges World War II military equipment of Poland Military equipment of the interwar period * Anti-materiel cartridges {{ammo-stub

History

See also

Notes

References