2-pounder gun, 2-pounder and QF 2 pounder or QF 2-pdr are abbreviations used for various guns which fired a projectile weighing approximately 2 pounds (0.91 kg). These include:
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QF 2 pounder Mk II & Mk VIII "pom-pom" Vickers 40mm naval anti-aircraft autocannon of the First World War and the Second World War
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Rolls-Royce 40 mm cannon
The Rolls-Royce 40 mm Cannon was a project first proposed in late 1938 to produce a cannon for mounting in aircraft which could cause sufficient damage to bring down a large bomber. It was envisaged as a suitable weapon for destroying tan ...
, known as "QF 2 pounder Mk XIV" Rolls-Royce 40mm gun of the Second World War
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Ordnance QF 2-pounder
The Ordnance QF 2-pounder (British ordnance terms#QF, QF denoting "quick firing"), or simply "2 pounder gun", was a British anti-tank gun and vehicle-mounted gun employed in the World War II, Second World War.
It was the main anti-tank weapo ...
Mk IX and Mk X British 40mm tank and anti-tank gun of the Second World War
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Field artillery