(1) Elevation. Predetermined points of aim sector the target horizontally. The tip of the front sight post held at shoulder level is considered one point of aim; the tip of the front sight post held at the top of the target's head is considered two points of aim. These points of aim are used to compensate for the elevation required to engage a target beyond the BZO capability of the rifle or to engage a small target inside the BZO of the weapon.
(a) Beyond the BZO. To use the point of aim technique to engage a target beyond the BZO of the rifle, a Marine must apply the following guidelines:
• When range to the target is estimated to be beyond 300 yards/meters out to 400 meters, hold one point of aim.
• When the range to the target is estimated to be beyond 400 yards/meters out to 500 meters, hold two points of aim.
(b) Inside the BZO. If the rifle is properly zeroed for 300 yards/meters, the trajectory (path of the bullet) will rise approximately 4 1/2 inches above the line of sight at a distance of approximately 175 yards/meters. At other distances, the strike of the bullet will be less than 4 1/2 inches above the point of aim. Only at 36 yards/30 meters and 300 yards/meters does the point of impact coincide with the point of aim. If only a portion of the target is visible (e.g., the head of an enemy soldier), the trajectory of the bullet may have to be taken into consideration when firing at a distance other than 300 yards/meters. If a Marine does not consider trajectory, he may shoot over the top of the target if the target is small and at a distance other than 300 yards/meters. See figure 10-6.
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