7.62 x 51 (NATO)

762x51

Calibre specification
Metric (mm) Imperial (in)
Calibre 7.62 x 51 .3 x 2.01
Name: NATO
Case Type: Rimless, bottlenecked
Bullet Diameter: 7.79
Case Length: 51.2
Rim Diameter: 11.93
Neck Diameter: 8.44
Shoulder Diameter:
Base Diameter: 11.93
Total Length: 71
Weight: 24 grammes
Primer: Boxer or Berdan
Year Introduced: 1954
Also known as:
  • .30 NATO
  • 7.62mm OTAN
  • 7.62mm Mle 54
  • 7.61×51
  • .308 Winchester
Countries using this calibre
Republic of South Africa

Sources: