The "Panzerfaust" and "Panzerschreck" (tank fist and tank terror, respectively) gave the German infantryman the ability to destroy any tank on the battlefield from 50–150 meters with relative ease of use and training (unlike the British PIAT). The Germans made use of large quantities of HEAT ammunition in converted 7.5 cm Pak 97/38 guns from 1942, also fabricating HEAT warheads for the "Mistel" weapon. These so-called "Schwere Hohlladung" (heavy shaped charge) warheads were intended for use against heavily armored battleships. Operational versions weighed nearly two tons and were perhaps the largest HEAT warheads ever deployed. A five-ton version code-named "Beethoven" was also developed.