Cluster Munitions - Capable to destroy tank?

[Marcello]

"Opinions are varied, but generally a 155mm HE shell will not certainly destroy a MBT"

I remember and anedocte about a T-55 which was destroyed by a plunging artillery HE shell somewhere in Africa. Considered that a typical 155mm shell weighs around 43Kg and that the top armor is just 4cm it does not seem unlikely. Still as it requires a direct hit it would be a pretty rare occurence. A cluster artillery round on the other hand might carry more than sixty bomblets, each of which would be bad news for a tank.