The 7.92×107mm Maroszek was a Polish military rifle cartridge developed for use in the Kb ppanc wz. 35 anti-tank rifle.
Design Details[edit | edit source]
The 7.92×107mm cartridge is based on the 7.92×57mm Mauser cartridge, with the casing length extended to 107mm to make for higher muzzle velocities.
Manufactured exclusively as an anti-tank round, the 7.92×107mm's projectile was initially coated with copper, but after a series of tests, the copper coating was phased out in favor of a brass coating.
History[edit | edit source]
In the late 1920s, the Polish General Staff began development on a lightweight anti-tank weapon for the Polish infantry. It was in 1931 that Lt. Colonel Tadeusz Felsztyn from Warsaw's Institute of Armament Technology had started the first test of various small-caliber cartridges.
After conducting tests with German-made Halger bullets, the National Ammunition Factory in Skarżysko-Kamienna found that the projectiles had proven the possibilties of such ammunition in penetrating steel plate. The factory was then ordered to develop its own 7.92mm cartridge with a muzzle velocity of over 1,000 meters per second. After a series of tests, the new DS cartridge was proposed.
It was then put into service for use in the Kb ppanc wz. 35 anti-tank rifle.