a--Normal Sight. This is the sight most frequently used. The following
illustration is the normal sight when the open sight notch is used.
[Illustration: The figure i-k-l-m is the front sight B-L-M-C the rear
sight notch.]
When the open sight is used the above diagram shows the correct
alignments of the rear sight notch, front sight and the bull's-eye. The
following features should be noticed:
1st. The front.sight (i-k-l-m) is exactly in the center of the rear
sight notch (B-L-M-C), if it is in the right or left part of this notch
the rifle will shoot to the right or left of the point aimed at.
2d. There is a thin strip of white seen between the top of the front
sight and the bull's-eye. (The Marine Corps and many army officers do
not see this strip of white. The method of aiming given and illustrated
in this book is the same as found in the Firing Regulations for the
Army.)
3d. The top of the front sight should just touch an imaginary line
connecting the shoulder at C with that at B. (This is most important.
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