Very very theoretical. The IR sights on an M-60A1 RISE Passive couldn't see that far under most circumstances.t-62 have no thermal sight - just active IR sight - in fact with theoretical range limited to 800m
The M-60A3 TTS, OTOH. would have been a long-range nightmare to the T-62, early T-64's & T-72's between the LRF, thermal sights, high quality ballistic computer and APFSDS ammo.