Panzergranate 39
The Panzergranate 39 or Pzgr. 39 was a German armor-piercing shell used during World War II. It was manufactured in various calibers and was the most common anti-tank shell used in German tank (German: Kampfwagenkanone; shorted to KwK) and anti-tank guns (German: Panzerabwehrkanone(n); shortened to PaK) of 37 to 88 mm (1.5 to 3.5 in) caliber.