APFSDS in real life
Armor-piercing fin-stabilized discarding-sabot (APFSDS) is a type of kinetic energy penetrator ammunition used to attack modern vehicle armour. As an armament for main battle tanks, it succeeds armor-piercing discarding sabot (APDS) ammunition, which is still used in small or medium calibre weapon systems.
Improvements in powerful automotive propulsion and suspension systems following World War Two allowed modern main battle tanks to incorporate progressively thicker and heavier armor protection systems, while maintaining considerable maneuver speed on the battlefield. As a result, achieving deep armor penetration with gun-fired ammunition required even longer anti-armor projectiles fired at even higher muzzle velocity than could be achieved with stubbier APDS projectiles.
The JSDF uses this type ammunition to deal the Flame Dragon's newborns and ogres. It is shown to strong enough to penetrate the scale of two newborn dragons and stun them. For ogres, the round is strong enough to blast a hole in the gigantic shield carried by the ogre and at the same time make a huge hole in the heavy armored body and blast their limbs off in a single shot.