I've read a couple books on the JFK assassination. Hell, it's got itself a whole little industry of writing and printing conspiracy theories! laugh
The .30 cal bullet in the dash is a new one for me though? Never heard that.
One thing I've always wondered about was (assuming Oswald was the lone shooter) why he waited till the limo was increasing range and speed under tree cover, when it had slowed drastically nearly under the window to make the turn beforehand.
He coulda almost jumped into the back seat as it made the turn. Short range, slow target.
Of course if Oswald was actually crazy...
There's always been way too much about this that doesn't fit well or fit at all.
7mm

"Preserving the Constitution, fighting off the nibblers and chippers, even nibblers and chippers with good intentions, was once regarded by conservatives as the first duty of the citizen. It still is." � Wesley Pruden