visible through a glass or with the naked eye, a method of determining
the distance is afforded by using a number of trial shots or volleys.
The method of using trial volleys is as follows: The sights are raised
for the estimated range and one volley is fired. If this appears to hit
but little short of the mark, an increase of elevation of 100 yards will
be used for the next volley. When the object is enclosed between two
volleys, a mean of the elevation will be adopted as the correct range.
The range may be obtained from a near-by battery or machine gun. This is
the best method when available."--Small Arms Firing Manual.

ESTIMATING DISTANCE TEST

This test is usually held after the record firing on the range has been
completed. No distance used in this test will be less than 547 yards
(battle sight range) or more than 1200 yards, which is considered the
extreme range for effective fire of individuals or a small command.
Should a soldier fail three times to make the necessary percentage in
these tests, his rifle qualification will be reduced one grade. For the
specific conditions governing this test, see Small Arms Firing Manual.

RANGE FINDERS

Five or six enlisted men, selected by the company

[Illustration: This shows the path of the bullet (Line of Trajectory) of
the 1917 Rifle (Enfield).

The Line of Aim, we see, connects the eye, the rear sight, the front
sight and the bottom part of the target. It is a straight line.

We see that the Line of Trajectory crosses the Line of Aim at two
points. The distance between these points is 452 yards. Therefore, 452
yards is the Battle Sight Range for the 1917 Rifle.]

To hit the target squarely when it is 200 yards away, the
Line of Aim must be under it, as shown in the diagram.]

[Illustration: THE 1917 RIFLE (ENFIELD)]

commander from those most skilled, will be designated as "Range
Finders." These men are practised in estimating distance throughout the
year. Their practice will be on varied ground and at distances up to
2000 yards. These men assist the company commander when the company is
on the defensive, in estimating the distances to the prominent objects
in view before the action commences; and at other times when the company
commander needs their assistance.

CHAPTER V

TENT PITCHING

On the hike the camp will be laid out daily in advance by a staff
officer. The company being halted and in line, the company commander
gives the