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This ideal aiming procedure (Figure 7-18) should be the initial procedure taught and practiced. (a) If this cannot be achieved, a canted sight picture may be practiced. The normalamount of cant needed by most firers to properly see through the sights has a limited influence on rounds fired at ranges between 75 meters or less.(b) Rifle ballistics causes the strike of the bullet to impact low in the direction of the cant (when a cant is used) at longer ranges. Due to this shift in bullet strike and the many individual differences in sight alignment when wearing a protective mask, it is important to conduct downrange feedback training at ranges beyond 75 meters on known-distance ranges. This allows soldiers to determine what aiming adjustments are needed to achieve center target hits. Figure 7-19, shows what might be expected for a right-handed firer engaging a target at 175 meters with no cant and a certain amount of cant, and the adjustment in point of aim needed to move the bullet strike to the center of the target. Figure 7-20, shows what might be expected for a right-handed firer engaging a 300-meter target. The adjustments in point of aim for left-handed firers are the opposite of those shown in Figures 7-19 and 7-20.Aiming in An NBC Environment
Aiming in An NBC EnvironmentMarksmanship Fundamentals(c) Although bullet strike is displaced when using a cant, individual differences are such that center-of-mass aiming should be used until the individual knows what aimingadjustment is needed. When distant targets are missed, a right-handed firer should usuallyadjust his point of aim to the right and high; a left-handed firer should adjust to the left andhigh. Then, the aiming rules are clear.(d) All targets should initially be engaged by aiming center mass, regardless of cant. When targets are missed while using a cant, firers should adjust the point of aim higher and opposite the direction of the cant. Actual displacement of the aiming point must bedetermined by using downrange feedback targets at ranges beyond 75 meters.
Aiming. Modifications to the aiming process vary. When firing unassisted, the firer’soff-center vision is used instead of pinpoint focus. Both eyes are open to gather themaximum available light, and are focused down range.Off-Center Vision. During the daytime when an individual looks at an object, helooks directly at it. However, if he did this at night he would only see the object for a few seconds. In order to see this object for any length of time, he must look 6 to 10 degrees from this object (Figures 7-23 and 7-24) while concentrating his attention on the object. This allows the light sensitive area of the eye, which can detect faint light sources or reflection, to be used.