[KeyLargo]

I know that is not the issue here but, I learned fast about AK-47 penetration in Viet Nam when I had taken cover behind a bulldozer blade. The incoming AK-47 rounds went through it making the blade look like Swiss Cheeze.

http://books.google.com/books?id=BwWSjqDkmOQC&pg=PA62&lpg=PA62&dq=ak-47+penetrates+armor+vietnam&source=bl&ots=KcNCOXGFsU&sig=4E4kk_gi8gYKHI0qRaaDX4JZeXE&hl=en&sa=X&ei=m9U7T4yKG-jA2gWPwoz0Bg&ved=0CC4Q6AEwAg#v=onepage&q=ak-47%20penetrates%20armor%20vietnam&f=false

[grobdriver]

Even the lowly 5.56 will drill through steel pretty well.

We had some steel stop plates that we used for Practical Pistol competition - .45 and 9mm just splattered, stopping the timer...

We plinked them one day out of boredom from ~150 yards with ARs and were surprised as hell to drive up and find them looking like swiss cheese.
Small holes, to be sure, but drilled all the way through!

[null and void]

Yikes! Did you die?