German anti-tank guns on the Eastern Front in 1944

0:00 7.5 cm Pak 40 (7,5 cm Panzerabwehrkanone 40) 75mm towed anti-tank gun which was the Wehrmacht's principle front-line anti-tank gun from 1943 until the end of WWII, in which time it would remain capable of defeating all but the heaviest Allied and Soviet tanks at combat ranges. 0:10 2.8 cm schwere Panzerbüchse 41 (sPzB 41) taper-bore anti-tank gun. The projectile started out at 28mm diameter but was “squeezed“ as it went down the tapered barrel to an emergent diameter of 20mm. The increase in bore pressure resulting in the exception muzzle velocity of 1.4 kilometers per second that gave it excellent penetration for such a light weapon and it could perforate 75mm of armor plate at 100 meters. 0:14 Marder III Ausf. H tank destroyer that mated the Pak 40 anti-tank gun with a modified chassis of the then obsolete Panzer 38(t) Ausf. H tank.