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British 4"/40 QF Mark 12 Gun


Photograph of British 4"/40 MkXII gun on a submarine

Australian War Memorial #306479


Specifications:


Bore
4"
101.6mm
Ammunition Type
SAP fixed shell.
Contact fused HE and star shells were also available.
Weight of round 35 lbs
15.88 kg
Velocity 1873 feet per second
571 meters per second
Maximum elevation       20 degrees
Range 10450 yards
9560 meters
Firing cycle 4.6 seconds
Loadout
250 rounds per gun (typically 230 SAP, 10 HE, 10 star shell)

This weapon was used on submarines and had no antiaircraft capability.


References

Campbell (1985)



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