12.7 x 81 SR (v/565)

Calibre specification
Metric (mm) Imperial (in)
Calibre 12.7 x 81 .5
Name: v/565
Case Type: Semi-rimmed, bottlenecked
Bullet Diameter: 13.05
Case Length: 81.2
Rim Diameter: 19.55
Neck Diameter: 13.80
Shoulder Diameter:
Base Diameter: 18.32
Total Length: 107.2
Weight: 82 grammes
Primer: Berdan
Year Introduced:
Also known as:
  • 12.7mm Breda
  • 12.7 x 81 SR
  • 12.7mm Type 1
  • 12.7mm Mod. 36
  • 12.7mm Japanese
  • .5 in. V/565 Vickers-Armstrong
Countries using this calibre
Hungary
Italy
Japan
Spain

Sources: