tanks

[RedDevil]

Actually it would depend on the ranges of your engagement Chris, as to where the shells would have hit. At closer ranges the trajectory of anything is rather flat as it has no time to arc like a rainbow and thus randomly hit the top. The relative angle of the top, compared to your position would most likely result in a skipped shell as well.

Also, Most gunners aim for the largest portion of the target to ensure a hit. The top is simply not a reasonable target as you're not shooting a mortar shell, and you trying to plop a high velocity round on top of something, rather than into it, are pretty slim.

There was a trick to use when you wanted the reds to target the 80mm front hull of your PanzerIV rather than focus on the little 50mm thick turret, and that was simply move out of Hull down position. Chance you take, but in most cases it would result in a bounced hull hit, rather than a turret penetration.
I don't have any scientific data proving this :) but it sure worked for me more times than I can remember.