China builds world's fastest tank-gun, then tries to hide it
This multipurpose cannon reportedly has a muzzle velocity of 2,000m per second.
The Institute claims that the new multipurpose cannon will have the highest range, velocity and penetration power of any 120mm/125mm cannon in the world.
Where the story gets more interesting is that by June 14, all references to the new 125mm cannon had been scrubbed from the University's website, which suggests an official desire for secrecy during tests.
This multipurpose cannon reportedly has a muzzle velocity of 2,000m per second for armored piercing fin stabilized discarding sabot rounds, whose discarding sabot concentrates the kinetic energy from propellant into frontal area of the penetrator rod.