| The smoothbore (non rifled) 120mm barrels are used to fire APFSDS rounds. These are Armour Piercing Fin Stabilized Discarded Sabot rounds. The spin is, obviously, imparted by the fins. The Sabot is the waste of the shot that makes the round 'bullet' shaped for firing and is discarded soon after the round has left the muzzle. This leaves the round looking like a large dart. It is inert and its power is in the energy that the round has - it is made from depleted uranium. This is the round that has recently caused some controversy.
Oh! To my knowledge - the Challenger is fitted with a 120mm smoothbore gun and fires the APFSDS round. |