This King Tiger was at least 8 times hit by a Jackson gun- none of them deadly. However, one of the shots was a lucky one and disabled the main gun's muzzle break. So the German tank crew could not fire back and had to abandon their more superior tank.
King Tiger Tank, Tiger II is the common name of a German heavy tank of the Second World War. German designation was Panzerkampfwagen Tiger Ausf.B, The ordnance inventory designation was Sd. It is also known under the informal name Königstiger.