Jagdpanther had a cannon that was previously used on the German heavy tank used during what event?
Jagdpanther The Jagdpanther (German: "hunting panther"), SdKfz 173, was a tank destroyer built by Nazi Germany during World War II based on the chassis of the Panther tank. It entered service in 1944 during the later stages of the war on the Eastern and Western Fronts. The "Jagdpanther" combined the 8.8 cm KwK 43 cannon of the Tiger II and the armor and suspension of the Panther chassis, although it suffered from the general poor state of German ordnance production, maintenance and training in the later part of the war, which resulted in small production numbers, shortage of spare parts and poor crew readiness.
24 cm Haubitze 39 The 24 cm houfnice vz.39 (German designation: 24 cm Haubitze 39) (Howitzer model 39) was a Czechoslovak-designed siege howitzer used in the Second World War. It was kept in production after the German occupation of Czechoslovakia in March 1939 and eighteen were delivered to the Germans. It was only used by the Army's "Artillery Regiment 814" and entered service shortly before the Battle of France in 1940. The regiment participated Operation Barbarossa and in the Sieges of Sevastopol and Leningrad.