ⓘ 8×63mm patron m32. The 8×63mm patron m32 was a bottlenecked centrefire cartridge with a slightly rebated rim for Swedish heavy and medium machine guns. It was u ..


ⓘ 8×63mm patron m/32

The 8×63mm patron m/32 was a bottlenecked centrefire cartridge with a slightly) rebated rim for Swedish heavy and medium machine guns. It was used from 1932 to the finalization of the re-chambering process of these machine guns to 7.62×51mm NATO in 1975.

In the late 1920s, the standard service cartridge in Swedish use was the 6.5×55mm Swedish skarp patron m/94 projektil m/94 live cartridge m/94 projectile m/94 service ammunition loaded with a 10.1 grams 156 gr long round-nosed m/94 B-projectile bullet which was not considered effective enough for anti-aircraft and indirect fire so the Royal Swedish Army Materiel Administration tasked AB Bofors to manufacture a larger rifle cartridge to meet these needs.

The patron m/32 round had the same overall length as the.30-06 Springfield cartridge, which allowed it to fit in the standard Browning receiver, but used a larger diameter case and like the 6.5×55mm had an uncommon 12.2 mm 0.48 in diameter bolt face. Compared to the 1928 pattern.30-06 Springfield M1 Ball the 8×63mm patron m/32 was loaded with 8 mm S bore 14.2 g 219.1 gr bullets and had more muzzle energy.

The patron m/32s boat-tailed spitzer bullets had an effective range of approximately 3.600 m 3.937 yd on which the impact energy was 196 J 145 ft⋅lbf, and a maximum range of approximately 5.500 m 6.015 yd when fired from a kulspruta m/36. Available with armour piercing bullets, patron m/32 was used in the UN-forces KP-bil during the Congo-crisis against the separatists armoured cars.

The 8×63mm patron m/32 cartridge was used in the following machine guns:

  • Kulspruta m/39
  • Kulspruta m/36
  • Kulspruta m/22
  • Kulspruta m/14-29
  • Kulspruta m/42

The 8×63mm patron m/32 was also used in the gevar m/40 bolt-action rifle. These were Karabiner 98ks re-chambered in Sweden for the patron m/32 and issued to the machine gun troops so their rifles would fire the same round as their machine guns. There are statements the gevar m/40 originally was intended as a stop-gap anti-tank rifle, but this has yet to be confirmed.

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