different between 2A46M-1 (t-72B) and 2A46M-4 (t-80)?
there are report from tanknet, that ZPT-98 more or less identical to 2A46M-4 .anyone know muzzle enrgy for 2A46M-4?
I think the main different between the two guns (2A46M-1 and 2A46M-4) was that the latter can use newer ammunitions such as the 3VBM19/3BM42M (3BM44M) 125mm round that had a muzzle velocity of 7.4MJ and a penetration of 600mm to 650mm at 2000m. (source: for the muzzle velocity of tank rounds and for the T-90 MBT tanks)