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Indian Tank Ammunition Scenario -KE Penetrators

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Introduction
Tanks employ two main types of ammunition to defeat armor of opposing tanks. One type is called HEAT (Hi-Explosive Anti-Tank) while the other is called APFSDS (Armor Piercing Fin Stabilized Discarding Sabot). Russian have introduced anti-tank missiles being fired from the main gun of T-90 tanks and the same concept is also being introduced in Mk-2 version of Arjun MBT. However, this capability is yet to see widespread usage; one school of thought says this capability has been introduced to cover for relatively lower performance level of Russian anti-tank rounds. But we digress.
While HEAT rounds rely on molten jet traveling at very high speed to defeat armor, APFSDS ammunition uses only Kinetic Energy to defeat armor.
Wikimapia provides a pretty detailed overview of these types of rounds. Please see the link here: http://en.wikipedia.org/wiki/Kinetic_energy_penetrator
India recently placed an order for 66,000 of these rounds from Russia and if news report(s) are to be believe…