Wellll !!! I thought you were a plane guy and you do sound like you know what you are talking about. My comment was simply to be informative of a MISTAKE you made not to be a wise a*$. I was also fine with your post with you spouting off your complete know it all. And weather you looked it up on the net or read about it in some book doesnt make a lot of difference.
I also didn't look it up on the net, and didn't read about it in a book. I actually new that the A10 used a 30MM shell. Your post was fine until that last paragraph you could have keeped that to your self.