Armour-piercing discarding sabot higher muzzle velocity. Unfortunately the low sectional density of the APCR resulted in poor carrying power (high aerodynamic drag), losing velocity and penetration rapidly over distance. To overcome these limitations the British devised a way for the outer sheath to be discarded after leaving the bore. The name given to the discarded outer sheath was the sabot (a French word for a wooden shoe). For APDS projectiles the sabot is also known as a pot, as the sabot resembles a flower pot in shape. The APDS has the advantages of the lightweight projectile with regards to bore acceleration and high
Kanchan armour high-explosive anti-tank warhead (HEAT) rounds and is known to defeat armour-piercing fin-stabilized discarding sabot (APFSDS). During development in the 1980s, Kanchan armour defeated a 106 mm recoilless rifle which was tried on the Arjun Tank. During trials in 2000, the armour was able to withstand hits from T-72 tank at point blank range, and defeated all available high-explosive squash head (HESH) and APFSDS rounds, which included Israeli APFSDS rounds. This armour is lightweight and compact. A new honeycomb structure design of non-explosive and non-energetic reactive armour (NERA) is reportedly being tested on Arjun tanks . When a projectile is fired,