is target is used during slow fire at 500 and 600 yards.

RAPID FIRE TARGET

[Illustration: TARGET D]

This target is always used with the battle sight at 200, 300, and 500
yards rapid fire. Battle sight is the position of the rear sight when
the leaf is laid down, which is the habitual position of the rear sight
leaf at drill. It is an open sight, and corresponds to an elevation of
547 yards.

WINDAGE

The rear sight is set on a movable base so that it can be moved to the
right or left and the aiming point shifted accordingly in order to
counteract the effect of the wind on the bullet.

General Rule. To shift the striking point of the bullet to the left
move the rear sight to the left. And, of course, the reverse holds true
when it is moved to the right.

A Specific Rule. One point of windage moves the striking point of the
bullet 4 inches for every 100 yards you are distant from the target.
(One point of windage at 200 yards causes the bullet to strike 8 inches
to the right or left of the line of aim; one point at 300 yards causes a
12-inch deflection of the bullet; one point at 500 yards a 20-inch
deflection, and so on.)

ELEVATION

General rule for changing the elevation after hitting the target: A
change of elevation either up or down, of 100 yards on your rear sight,
will raise or lower your bullet in inches on the target equal to the
square of your distance in yards from the target. I.e., a change of 100
yards in elevation on the rear sight leaf while firing at the 200-yard
range raises or lowers the striking point of the bullet at the target 4
inches. A similar change while firing at the 300-yard range raises or
lowers the striking point of the bullet 9 inches, at the 400-yard range
it would be 16 inches, at the 500-yard range 25 inches, and so on.

The following illustrations are self-explanatory in regard to windage
and elevation changes and should be diligently studied during
preliminary instruction. The effect of windage changes (given in points)
will be found at the bottom of each target, while the effect of
elevation changes (given in yards) will be found to the left of each
target.

[Illustration: TARGET A, 6' x 4'

TARGET B, 6' x 6']

The above system of indicating the windage and elevation on each target
is used in the United States Marine Corps score book. Each man at
Plattsburg, in 1916, was supplied with one of these score books. If used
at the firing point they gr