though the topic has shifted slightly from the original, I will keep it going..

Found this, which seems to pretty strongly support the "nope" side in the .50 cal vs Pzr underbelly argument.
http://www.p47advocates.com/messages/1235.html Also, one thing to consider... one of the key components in penetrating armor is high velocity, which relatively speaking, the .50 cal has. The problem with the ricochet theory is that any object making an immediate, significant change in direction, especially due to coming in contact with the proverbial "immovable object", would lose a great deal of its original velocity. The sharper the angle of ricochet, the more serious the loss of velocity. I have been a shooter all my life, both recreationally and competitively. I HAVE seen a bullet, yes, the entire bullet, ricochet straight back 180 degrees and land at my feet. Problem was, after hitting whatever it hit that changed its direction so severely, it had lost so much velocity that I could see it coming... and this was a .357 magnum round, with an initially high velocity. The thing just plunked in to the sand at my feet and I picked it up. The hypothesis would be that tank armor, even belly armor, would be thick enough to repel a richocheted, (direction changed/velocity diminished) .50 cal round with little difficulty. Just my inflation adjusted 2 pennies worth.
