InsightDubai,
Here is some data on the 125mm (smoothbore) main gun of the Al-Khalid.
MAIN ARMAMENT AMMUNITION
125-mm APFSDS-T
Maximum Aimed Range (m) - 3,000
Max Effective Range (m)
Day - 2,000-3,000
Night - 850-1,300
Armor Penetration (mm) - 590-630 at 2,000 meters
125-mm Frag-HE-T...