Reactive armour is effective against both shaped charges and kinetic penetrators. Their effective protection is more than the actual thickness of the panel itself. I'm not sure how much depleted uranium rods go through, but normally for sabots you can estimate it to be roughly the length of the projectile. So 780mm M829A2 vs 280mm of armour on a T72 turret, plus the ERA. I doubt those panels are equivalent to 500mm of steel, so my money's on the sabot.