The Panzerabwehrkanone 40 (PaK 40) 7.5cm anti-tank gun was an anti-tank gun used by the Germans in World War II. It was built to combat the superior Russian tanks like the T-34 and the KV-1. The PaK-40 was brought into service in November of 1941 and remained the primary anti-tank gun in service with Germany and its allies until the end of the war. With a range of 1,000 to 1,500 yards, the PaK-40 could fire a 15-pound armor piercing round at 2,598 feet per second, making it an accurate and efficient tank killer. With the later advent of the 7-pound tungsten-cored round (AP40), the PaK-40 could punch through 115 mm of steel at 500 yards, allowing it to take on virtually every Allied tank except the most heavily armored, like the Soviet IS-2 and American Pershing. The crew of eight could pump out about 10 rounds per minute. One drawback of the PaK-40 was its great weight which made it difficult to manhandle and almost impossible to move without the aid of an artillery tractor. In the photo, one of the shells can be seen on the ground next to the gun.
"German Artillery." www.theeasternfront.co.uk. Oct. 23, 2010. http://www.theeasternfront.co.uk/Infantry/german/germanartillery.htm
"7.5 cm PaK 40 Anti-Tank Gun. www2db.com. Oct. 23, 2010. http://ww2db.com/weapon.php?q=A202