6.5 x 51 (Japanese Type 38)

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Calibre specification
Metric (mm) Imperial (in)
Calibre 6.5 x 51 .256 x 1.97
Name: Arisaka (2nd Model)
Case Type: Semi-rimmed, bottleneck
Bullet Diameter: 6.63 0.263
Case Length: 50.7 2.00
Rim Diameter: 11.99 0.471
Neck Diameter: 7.41 0.293
Shoulder Diameter: 0.425
Base Diameter: 11.38 0.455
Total Length: 76.3 2.98
Primer: Complex ‘6’
Year Introduced: 1897
Also known as:
  • 6.5x51SR
  • 6.5mm Japanese
  • 6.5mm Type 38
  • .256 Ball Mk. I
  • DWM 481
Countries using this calibre
Japan

Sources: