The Comet was the best British tank of WW2. Its 77mm gun fired the same ammunition as the 17 pounder gun from a shell case based on the British WW1 anti aircraft gun. The reduction in villosity did not have a too negative affect on the APDS shot and the Comet could still take on a Tiger or Panther at range.
World War II: British Tank Churchill via @learninghistory
British Tank Rolling over Trench: Members of the British Royal Navy maneuver a tank, or "landship," over a trench during the 1917 Battle of Cambrai, one of the first successful uses of the tank in World War I.