Ordnance 75

mm (called Royal Ordnance Quick Firing 75 mm ) - British anti-tank gun of World War II, was a modification of the 6-pound cannon (57 mm), use the same ammunition as the U.S. 7 5 mm gun. The main reason for the origin of this gun was that CLU STER MUNITIONS used 6-pound cannon was not sufficiently effective against the soft , nieopancerzonym purposes. All copies of the 75 mm guns were produced after przekalibrowaniu existing 6-pound cannon, all the external dimensions of the two arms were identical.