*High-Explosive round*
High-Explosive rounds (HE) as distinct from High-Explosive Armour Piercing rounds rely more on blast and are usually detonated on impact or with a timed or chemical fuse. Their armour-piercing capabilities are somewhat limited and they are used mainly against soft targets, lightly armoured vehicles and buildings.
*APDSFS (Armour-Piercing Discarding Sabot Fin-Stabilized)*
Armoured-piecing discarding sabot fin stabilized round is the next generation of tank on tank rounds, with the discovery of APDS rounds, at the end of the Second World war the quest to increase the kinetic energy and thus the greater penetration was always the goal, making the projectile thinner gave less resistance in flight but in turn made it unstable and the round tended to tumble, in order to overcome this fins were added to give stability. Some countries use depleted Uranium in dart manufacture it being even denser and therefore carrying more kinetic energy than tungsten.