The 20 pounder's APCBC projectile had a muzzle velocity of 1,020 metres per second and could penetrate of rolled homogeneous armour (RHA) while the Armour-piercing discarding sabot projectile had a muzzle velocity of and could penetrate of RHA.
The 20 pounder's APCBC projectile had a muzzle velocity of 1,020 metres per second. The 20 pounder's APCBC projectile could penetrate of rolled homogeneous armour (RHA). The Armour-piercing discarding sabot projectile had a muzzle velocity of. The Armour could penetrate of RHA.