(ii) For elementary instruction in aiming the important six o’clock line—the centre of the base of the triangle—is on these targets an indicated instead of an imaginary line, as in the case of the circular bull’s-eye. More consistent grouping is induced by the triangle owing to the fact that it allows a much narrower margin for lateral errors, while its conical shape and straight base considerably curtail the scoring area for vertical errors off the six o’clock line as compared with the circle ([Fig. 69]). The triangle, moreover, as an aiming and scoring surface puts a premium upon a low point of aim and from the first inculcates in men, as a habit, this vital principle of marksmanship in war.
Fig. 70.—Solano Instructional Target No. 1. Upright Figure. 25 Yards = 400.
(Slightly reduced from actual size. [See footnote, p. 250].)
Fig. 71.—Solano Instructional Target No. 2. Upright Figure. 25 Yards = 500.
(Actual size. [See footnote, p. 250].)
(iii) The centre triangles are not made smaller, firstly, because it is not desired to encourage the habit of slow aim which is engendered by individual practice at very small marks, and which militates against efficiency in snapshooting and rapid firing; and, secondly, because it is not desired to encourage men to attain a useless and disproportionate degree of excellence in firing at elementary targets which is merely preparatory for practice at service targets.
Fig. 72.—Solano Instructional Target No. 3. Lying Figure. 25 Yards = 300.