7.62 x 39 : [PRC] ; 7.62 mm Russian Short, incendiary
bullet : attachment : press fit
The cartridge for which the Simonov (SKS) and Kalashnikov AK47 rifles were developed was the M43 intermediate cartridge. Although the Russians had begun development of an intermediate cartridge in 5.45mm as early as 1939, development stopped as the war intensified. It was re-stimulated by combat conditions on the Eastern Front, where large magazine capacity and effectiveness to c. 600 metres was what was required, and by the arrival of the German MP43 (later re-named StG44), which demonstrated that the Germans had reached the same conclusion on rifle and cartridge design. Adopted by the Warsaw Pact, China, Finland, Yugoslavia, Cuba and many other nations, it is the most successful military cartridges of all time. This example may be tracer-incendiary.
 stamped, case base, headstamp
 501 // 72
 bullet tip marked in red lacquer, indicating incendiary