Then the assassin should have used some type of frangible round. Some type of modified carcano bullets that would disintegrate on impact. Remember, the Walker bullet could not be traced to Oswalds rifle. So technically, such a feat could have been achieved (theoretically speaking of course).
No bullet was ever traced to the MC rifle, except of course CE399 but that his it's own problems.
Of the three bullets fired at the car, one missed and was lost, the second exploded in Kennedy's head and the third one was allegedly CE399, despite the fact that the bullet fragments recovered at Parkland combined with those still left in Connally's body were more than the damage to CE399.
Other fragments of bullets were allegedly found in the limo, but this we will also never know for sure, because when the FBI Forensic team arrived at the Secret Service garage to examine the limo, they were told it had already been done and they were given some bullet fragments that supposedly came from the car.
The only match there could have been was with the shells found at the 6th floor, and they also have their own problems.....
But I'm sure none of this will stop Ross from repeating his arguments.