Not a CEV. It's got a long, narrow (105mm) gun tube, not the short, stubby 152mm of a CEV.
Where do you see a barrel at all unless that is it in the bottom right of the picture? I still agree it is not a CEV based on the lack of a boom poking out anywhere or a plow.
Since we are flexing Internet military muscles.. the CEV actually has a British electrically fired 165mm demolition gun, not a 152! You are thinking of an M60A2
I ran one of those through a firing range a few times. Mostly it was with non explosive training rounds for target practice, but once we fired the real ones which amount to a watermelon made of plastic explosives. At over 300 meters we still caught fragments of our own round.
The time we fired live rounds was at the very last NTC rotation where a M728 was used. When we were done they had us drain all of the fluids, strip the electronics, pull pack, and the chassis were dragged off to be targets.