8×63mm patron m/32

The 8×63mm patron m/32 was a bottlenecked centrefire cartridge with a slightly (0.25 mm (0.0098 in)) rebated rim for Swedish heavy and medium machine guns. It was used from 1932 to the finalisation of the re-chambering process of these machine guns to 7.62×51mm NATO in 1975.

8×63mm
Two 8×63mm patron m/32 military cartridges
TypeRifle
Place of originSweden
Service history
In service1932–1975
Used bySweden
WarsUN intervention in Kongo 1960-1964
Production history
DesignerKungliga Armétygförvaltningen (KAF)
AktieBolaget Bofors
Designed1927–1932
ManufacturerAB Bofors
Specifications
Case typeRebated, bottleneck
Bullet diameter8.20 mm (0.323 in)
Neck diameter9.10 mm (0.358 in)
Shoulder diameter11.51 mm (0.453 in)
Base diameter12.43 mm (0.489 in)
Rim diameter12.18 mm (0.480 in)
Rim thickness1.42 mm (0.056 in)
Case length62.81 mm (2.473 in)
Overall length84.62 mm (3.331 in)
Primer typeBerdan, Large rifle
Ballistic performance
Bullet mass/type Velocity Energy
14.2 g (219 gr) m/32 FMJ 760 m/s (2,500 ft/s) 4,101 J (3,025 ft⋅lbf)
Test barrel length: 609 mm (24 in)
Source(s):
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