You don't need any special camera equipment. Just set up witness sheets downrange.
L.F. Moore used the witness sheets in the Sept. 1968 Rifleman article "Bullets in the Brush--Where Do They Go?" that is referenced above.
It's interesting to see his results. The bullets initially yaw or tumble, but the gyroscopic component of the bullets appears to cause them to restabilize and take an entirely different line of flight.
Where the dowels were hit relative to center line made a great difference in deflection. If he just nicked a dowell on the left, the bullet tended to deflect to the left. But in his many tests, the witness cards often showed that if a bullet hit a dowell closer to the center and was deflected to the left, that the bullet restabilized and struck downrange to the right of the dowell--sometimes by a significant amount. The opposite if the bullet struck and deflected to the right.
