Havn't read it all but I for one am really impressed with the overall expert opinions !

That's why I respect Texags discussions !

Operation Galvanic in WWII, during the Battle of Tarawa, preceding the beach landing. Coconut logs bound together by iron bands fortifying the Japanese employment caused about many of the incoming shells from naval battleship fire to bounce off, rather than detonate. Where the bouncing shells landedo were the opposite side of the island in and around other ships in the battleground (thought to be far enough away to be out of danger). Not sure any were actually hit, though. But they were forced to reposition. The coconut logs proved to be pretty effective at absorbing the shrapnel of exploding rounds, and caused many rounds to simply not detonate at all.