(ii) In order that he may learn from experience the pressure required to release the cocking-piece, the soldier in commencing instruction in trigger-pressing, will be directed to place his forefinger under that of the instructor, but without exercising pressure, whilst the instructor carries out the motion ([Fig. 18]). Then, to enable the instructor to ascertain whether the method is understood, the soldier will place his finger over that of the instructor, and exert the pressure. Finally, the soldier will himself press the trigger, while the instructor uses the aim-corrector to see that aim is not disturbed when the trigger is pressed. Special care will be taken that the breathing is restrained while pressing the trigger. The use of the sling for steadying the rifle during firing is not to be taught.
5. Declaring the Point of Aim.—The recruit must always be made to say after the spring is released whether the aim was maintained truly at the moment of snapping. If not, he must state definitely the direction in which the rifle was pointed at the moment of discharge. By this means recruits will find out and correct their own faults, and the contraction of bad habits will be avoided.
6. Tests of Trigger-Pressing and Snapping.—From time to time the instructor will test the aim and steadiness of each recruit in trigger-pressing and snapping with an aim-corrector or an aiming-disc ([Fig. 19]). If necessary, further lessons in trigger-pressing will be given. Progress should also be tested from time to time by grouping practice on the miniature range or 30 yards range. These practices will help to develop steadiness until range practice is begun. Daily practice in snapping is necessary for trained soldiers as well as for recruits.
Section 26.—The Various Firing Positions.
1. Vulnerability of Different Firing Positions.—In the open up to 1,000 yards the lying position will usually prove the least vulnerable to the effects of both rifle and artillery fire, as it is the most difficult to discern and exposes the smallest surface to fire. As a rule, the lying position is also the least vulnerable to the effects of rifle fire at all ranges. On the other hand, it is more vulnerable to the effects of shrapnel in the open than the kneeling or sitting positions. The use of entrenchments, however, whenever possible, usually obviates the necessity for assuming the lying position in the open in attacking a strongly-held defensive position.
Fig. 17.—Showing Grip of Right Hand, and Trigger Finger.
Fig. 18.—Instructor Illustrating Correct Method of Pressing the Trigger.
