Kugeltiger (1947) superheavy tank with 130mm Pak-73 cannon with PzGr 43/46 APHE with 301mm penetration at 100m or PzGr 43/47 APHEDS with 373mm penetration at 100m, (10m pzgr 43/46: 322. 10m pzgr 43/47: 413) (aphe is armour piercing high explosive, apheds is armour piercing high explosive discarding sabot,)