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The Ordnance quick-firing 6-pounder 7 cwt, [note 1] or just 6-pounder, was a British 57 mm gun, serving during the Second World War as a primary anti-tank gun of both the British and United States Army (as the 57 mm gun M1). It was also used as the main armament for a number of armoured fighting vehicles.
Ordnance QF 6-pounder: Anti-tank gun 57 mm 2.244 inch Ordnance BL 10-pounder Mountain gun: Mountain gun 69.8 mm 2.75 inch 12-pounder (multiple types) Light field gun 76.2 mm 3 inch Ordnance QF 13-pounder: Light field gun 76.2 mm 3 inch 15- pounder (multiple types) Field gun 76.2 mm 3 inch Ordnance QF 17- pounder: Anti-tank gun 76.2 mm 3 inch ...
6-pounder gun or 6-pdr, usually denotes a 57-millimetre (2.2 in) gun firing a projectile weighing approximately 6 pounds (2.7 kg). Guns of this type include: QF 6 pounder Hotchkiss , a 57 mm naval gun of the 1880s; a similar weapon was designed by Driggs-Schroeder for the US Navy
The Ordnance QF Hotchkiss 6 pounder gun Mk I and Mk II or QF 6 pounder 8 cwt were a family of long-lived light 57 mm naval guns introduced in 1885 to defend against new, small and fast vessels such as torpedo boats and later submarines. Many variants were produced, often under license, which ranged in length from 40 to 58 calibers, with 40 ...
In 1940 as part of the British anti-invasion preparations, a large number of pillboxes were built to a design, known as Type 28 or FW3/28, intended for the modern 2-pounder anti-tank gun. However, as these were in desperately short supply, 6-pounder Hotchkiss guns firing solid shot were used instead.
Mk II followed the early weakly made and less powerful Mark I 80-pounder and introduced a 100-pound projectile, which became standard for British 6-inch guns until 1930. It consisted of a much thicker steel barrel with wrought-iron jackets shrunk over it and as originally introduced weighed 81 cwt (9720 pounds).
The 14.9 lb (6.76 kg) HE shell fired at 2,050 ft/s (625 m/s) was found to be the best available and superior to that of the 6-pounder, M7 3 in and 17-pounder, all chiefly anti-tank guns. Against armour, its AP shell was the worst, penetrating only 68 mm of RHA at 500 yards (460 m) and a 30-degree angle of attack, whereas the AP shells of the ...
The larger Switchblade 600 loitering munition weighs 54.5 kg (120 lb) including the all-up round in the tube and FCS; [52] the airframe weighs 22.7 kg (50 lb), with the fire control system consisting of a tablet and long-range antenna. [53] The system is man-portable and can be set up in 10 minutes.