Source: 2ch.hk

Three words: told you so :)

152mm gun-launcher (the weapon used on Sheridan, just without the option to fire Shillelagh missiles) in the XM551 (Sheridan prototype) turret and T49 hull.

Stats:

Hitpoints: 1100

Top gun: 152mm Gun-Launcher XM81

Penetration: 76/152,4/76 (HE/HEAT/gold HE, gold HE shells have larger blast radius it is assumed)

Damage: 910/700/910

DPM with HEAT: 1825

Aim time: 4s

Accuracy: 0,6

Depression: -10

Hull turnrate: 44

Hp/t: 24,74

Weight: 22,234 tons

Viewrange: 400