Ask Boone as he testified to this:
Mr. BALL - Who referred to it as a Mauser that day?
Mr. BOONE - I believe Captain Fritz. He had knelt down there to look at it, and before he removed it, not knowing what it was, he said that is what it looks like. This is when Lieutenant Day, I believe his name is, the ID man was getting ready to photograph it.
We were just discussing it beck and forth. And he said it looks like a 7.65 Mauser.
It looks like a Mauser said Fritz.
And a Carcano looks like a Mauser.
What's your point?