prototype gun

[DRG]

http://thediplomat.com/2015/06/revea...eadly-new-gun/

The prototypes barrel length is 7.5 meters with a length to caliber ratio of at least 60:1, Popular Science notes, which is a larger ratio than the current largest 120 mm cannon in service, and would allow for larger rounds that store more propellant explosives. Popular Science also lists additional technical specifications:

This multipurpose cannon reportedly has a muzzle velocity of 2,000m per second for armored piercing fin stabilized discarding sabot (APFSDS) rounds, whose discarding sabot concentrates the kinetic energy from propellant into frontal area of the penetrator rod, which is the size of a half dollar coin. For comparison, current Chinese 125mm APFSDS have a 1700m/s muzzle velocity, the German L55 has a muzzle velocity of 1,750m/s, and the US’s M829A3 APFSDS round has a muzzle velocity of only 1,555m (but uses a larger penetrator with increased mass to increase imparted kinetic energy).

.......The new one piece 125mm ammunition will allow for larger APFSDS [Armour-piercing fin-stabilized discarding-sabot] rods, while keeping the caliber to 125mm to save weight, as opposed to scaling up to a larger caliber, such as 140mm.

The cannon will now undergo thorough testing by the People’s Liberation Army (PLA) and could be used for the next generation of Chinese main battle tanks (the turrets of current Chinese tanks in service appear to be too small to accommodate a gun of this size), although the pictures published on the Popular Science website showed it mounted on a towed carriage.

....theres more on that website..