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8X56mmr Ammo

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8x56mmR ammo, also known as the 8x56mmR M30s or 8x56mmR Mannlicher, is an Austrian cartridge designed in 1930.

The 8×56mmR is currently produced by Hornady and Prvi Partizan for commercial sales. It is no longer in use by any organized military forces.

It was created for the Steyr-Solothurn light machine gun like the M30. Later the cartridge was adopted for use in rifles in 1931 as the M31 to replace the 8×50mmR Mannlicher cartridge.

About: 8x56mmR

  • Type: Rifle
  • Place of origin: Austria
  • In-service: 1930-1945
  • Used by: Austria, Hungary, Germany, Bulgaria
  • Designed: 1930
  • Produced: 1930-Present (commercial)


  • Parent case: 8×50mmR Mannlicher
  • Case type: Rimmed, bottleneck
  • Bullet diameter: 8.35 mm (0.329 in)
  • Neck diameter: 9.20 mm (0.362 in)
  • Shoulder diameter: 12.00 mm (0.472 in)
  • Base diameter: 12.47 mm (0.491 in)
  • Rim diameter: 14.05 mm (0.553 in)
  • Rim thickness: 1.37 mm (0.054 in)
  • Case length: 55.63 mm (2.190 in)
  • Overall length: 75.91 mm (2.989 in)
  • Rifling twist: 255 mm (1 in 10 in)
  • Primer type: Berdan or Boxer Large Rifle
  • Maximum pressure: 355 MPa (51,500 psi)

Ballistic performance

Bullet mass/type Velocity Energy
206 gr (13 g) M30 701 m/s (2,300 ft/s) 3,280 J (2,420 ft⋅lbf)
200 gr (13 g) 200 Grain Jacketed 622 m/s (2,040 ft/s) 2,507 J (1,849 ft⋅lbf)

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