Similar to the 7.62x54 mm R, the full-power cartridge utilized by the Red Army, the groove diameter of 7.62x39 mm-chambered arms varies slightly whereas 0.310" to 0.312" are encountered, the typical diameter is 0.311" (7.92 mm). The Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI) set the maximum average pressure (MAP) at 45,000 p.s.i., while that for Commission Internationale Permanente Pour L’epreuve Des Armes A Feu Portatives (CIP) is higher. of water-nearly identical to that of the. Case capacity is reported to be around 35 grs. MPG.Ĭoncerning the case head diameter, whereas Hornady’s manual lists it as 0.447", the Sierra Reloading Manual, 5th Edition, has it listed as 0.445"-a somewhat unique dimension. The bullets the author used for testing included (l. Unlike 0.308"-diameter bullets, which are readily available in a mind-boggling array of weights and configurations, 0.310" to 0.311" bullet selections are more limited. The 0.047" decrease in width along its body is why magazines for guns chambered for the cartridge, such as the SKS and AK-47, are curved. 30-’06 Sprg., and the case tapers from 0.443" forward of the extraction groove to 0.396" at the shoulder. According to the Hornady Handbook of Cartridge Reloading, 9th Edition, the shoulder angle is 17°, 30', the same as the venerable. Each platform demanded that the rimless, bottleneck case have a shallow shoulder angle and generous taper for reliable feeding and extraction-especially in full-automatic operation. It later achieved worldwide fame in the Avtomat Kalashnikova (AK-47). Destined to be utilized in a host of infantry arms-ranging from semi-automatic carbines and select-fire rifles to light machine guns-it was first chambered in the Ruchnoy Pulemyot Degtyaryova (RPD) followed by the Samozaryadnyj Karbin sistemy Simonova, 1945 (SKS-45). The 7.62x39 mm’s intended use is apparent in its design. can handle bullets upward of 170 grs., giving each a slight edge in versatility over the 7.62x39 mm. 300 Blackout is available in both supersonic and subsonic loads, while the. Not until after a further round of refinements did the now-familiar 7.62x39 mm (M43) debut.īallistically speaking, the 7.62x39 mm (center) is similar to the. But it wasn’t the 7.62x39 mm that emerged instead, the resulting cartridge had a 41 mm case. The Russians took note.ĭevelopment of the Russian’s own intermediate-range cartridge began in earnest during July 1943, and seven months later it was adopted. Effective at typical combat engagement distances (out to 300 meters), the mild-mannered 7.92 Kurz permitted controllable (and thus accurate) full-automatic firing at a high-cyclic rate. Although less powerful than the German 7.92x57 mm Mauser rifle cartridge, it offered superior external and terminal ballistics to those of the 9 mm Luger pistol and submachine gun cartridge. Also known as the 7.92 Kurz, it demonstrated the effectiveness of a new concept: a battle cartridge of intermediate range and power. 23, 1942, to May 5, 1942-saw the fielding of a new cartridge, the 7.92x33 mm Kurz, by the German military. Often reported as being the impetus for the development of the 7.62x39 mm (M43) cartridge, the Battle of Cholm, or Cholm Pocket-which took place on the Eastern Front from Jan. Technological advancements in components and the introduction of high-quality firearms chambered for the cartridge during the past few years alone have renewed interest in the Soviet stalwart. T he unassuming 7.62x39 mm (M43) cartridge is likely more popular today than ever. Best results can be expected when bullets are selected that properly match the bore dimensions. The 7.62x39 mm shooter should consider handloading to ensure a steady supply of accurate, high-performance loads and to achieve shot-to-shot consistency.
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