Also, what makes me wonder is how they managed to recover the bullets to match them to firearms. Thats very hard with rifle bullets because they're going so fast (2400-3500 feet per second) that if they hit anything solid they usually disintegrate, even projectiles that weren't designed to deform. Shoot a rifle bullet at concrete, stone or thick steel and it will shatter into a hundred tiny pieces.
per wikipedia,
According to the single-bullet theory, a three-centimeter (1.2″)-long copper-jacketed lead-core
6.5×52mm Mannlicher–Carcano rifle bullet fired from the sixth floor of the
Texas School Book Depository passed through President Kennedy’s neck and Governor Connally’s chest and wrist and embedded itself in the Governor’s thigh. If so, this bullet traversed 15 layers of clothing, 7 layers of skin, and approximately 15 inches of tissue, struck a necktie knot, removed 4 inches of rib, and shattered a radius bone. The bullet was found on a
gurney in the corridor at the
Parkland Memorial Hospital, in
Dallas, after the assassination
Most pro- and anti-conspiracy theorists believe
[5] that the single-bullet theory is essential to the Warren Commission's conclusion that Oswald acted alone. The reason for this is timing: if, as the Warren Commission found, President Kennedy was wounded some time between frame 210 and 225 of the
Zapruder film[6] and Governor Connally was wounded in the back/chest no later than frame 240,
[7] there would not have been enough time between the wounding of the two men for Oswald to have fired two shots from his bolt-action rifle. FBI marksmen, who test-fired the rifle for the Warren Commission, concluded that the "minimum time for getting off two successive well-aimed shots on the rifle is approximately 2 and a quarter seconds" or 41 to 42 Zapruder frames.
[8][9]
^This is the so-called "magic bullet", if the chain of evidence was not violated.