DAcquiring and Maintaining Sight Alignment and Sight Picture

(1) The human eye can focus clearly on only one object at a time. For accurate shooting, it is important to focus on the tip of the front sight post the second the shot is fired. When the shot is fired, focus must be on the tip of the front sight post; secondary focus will include the rear sight and the target. The rear sight and the target will appear blurry. To stare or fix the vision on the front sight post for longer than a few seconds can distort the image, making it difficult to detect minute errors in sight alignment.

(2) Proper stock weld and placement of the butt of the rifle in the shoulder aids in establishing sight alignment quickly. The rifle butt's placement in the shoulder serves as the pivot point for presenting the rifle upward to a fixed point on the cheek (stock weld). During combat, a Marine will look at the target as the rifle is presented. As the rifle sights become level with the aiming eye, a Marine visually locates the target through the rear sight aperture. As the rifle settles, a Marine's focus shifts back to the front sight post to place the tip of the post on the target and obtain sight alignment and sight picture. To maintain sight alignment and sight picture, the Marine's focus should shift repeatedly from the front sight post to the target until correct sight alignment and sight picture are obtained. This enables the detection of minute errors in sight alignment and sight picture.

e. Size and Distance to the Target. During combat, the fundamentals of marksmanship must be applied in a time frame consistent with the size and the distance of the target.

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