Relationship Of Sights

It is necessary to be acutely aware of the relationship of the rear sight to the clearly defined front sight. Normal vision is such that the rear sight of the pistol will be as nearly In focus as the front sight. Some shooters may be able to see only the notch of the rear sight In sharp focus; the outer extremities may become slightly blurred.

Figure 2-1. The Relationship of the Sights.

1. Angular Shift Error: If the shooter does not observe correct aiming (maintaining the top surface of the centered front sight on a level with the top of the rear sight and equal light space on each side of the front sight) there will be few accurate shots. Most often, he locates the front sight in a different position In the rear notch. This accounts for a greater dispersion of shots on the target, since the bullets will deviate In the direction In which the front sight is positioned In the notch. (Figure 2-2). This aiming error is known as angular shift error.

Figure 2-2. Displacement of the Bullet When There Is Angular Shift Error in the Alignment of the

Front Sight.

Figure 2-2. Displacement of the Bullet When There Is Angular Shift Error in the Alignment of the

Front Sight.

2. Parallel Shift Error: If the hold (arc of movement) is deviating In near parallel error from the center of the aiming area, the shooter should know that these deflections will not lower the score to the extent of angular shift error. Therefore, sight alignment is the most critical of the two. Thus, the accuracy of a shot depends mainly upon the shooter's ability to consistently maintain correct sight alignment. The main effort should be toward keeping your sights aligned, Holding the pistol perfectly still is desirable but It is not mandatory.

Good Sight Alignment. Shot breaks with a slightly high hold.

Hold is good, but front sight alignment creates error.

Figure 2-3, Displacement of the Bullet When The Pistol is Shifted: (a) Parallel, (b) Angular

Figure 2-4a, Impossible! The Human Eye Cannot Focus On A Close-UP Object and A Distant

Object Simultaneously.

Figure 2-4a, Impossible! The Human Eye Cannot Focus On A Close-UP Object and A Distant

Object Simultaneously.

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