QF 5.25 Inch Gun - Specifications

Specifications

• Bore Diameter: 5.25 inches (133 mm)
• Barrel Length: 6.668 m (50 calibres)
• Shell weight: 80 lbs (36.3 kg)
• Range: 24,070 yds (22,000 m) at 45 degrees
• Anti Aircraft Ceiling: 46,500 ft (14,170 m)
• Rate of Fire: Sustained 7-8 rpm, 18 RPM claimed for HMS Vanguard.
• Penetration: side armour: 3 inches (76 mm) 9,500 yards (8,690 m) or 11,900 m, depending on the sources; the gun was not capable to penetrating 2 inches (51 mm) of deck armour at any range
• Mounting weight: 78.7 metric tons (varied)
• Mounting elevation: -5 to +70 degrees
• Training/Elevating speeds: 10/10 degree/second and 20/20 in RP10 mounts.