Fig. 18
The soldier sighting directs the marker to move the disk to the right, left, higher, or lower, until the line of aim is established when he commands, "Mark," or "Hold."
At the command "Mark," being careful not to move the disk, the marker records through the hole in the center the position of the disk and then withdraws it.
At the command "Hold," the marker holds the disk carefully in place without marking, until the position is verified by the instructor, and the disk is not withdrawn until so directed.
Fig. 19
[1357]. Point of Aim. Always be sure to aim at a point just below the black bull's-eye,—that is, aim so that there will be a fine line of light between the bottom of the bull's-eye and the-top of the front sight ([Fig. 19]). This is important to insure uniformity in sighting,—that is, in order to make sure that you aim at the same place on the target each time. If the top of the front sight touches the bottom of the bull's-eye it is impossible to say just how much of the front sight is seen, and how far up into the bull's-eye you are.