line of sight aiming point center line of bore trajectory range elements of zeroing
TRANSCRIPT
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• LINE OF SIGHT
• AIMING POINT
• CENTER LINE OF BORE
• TRAJECTORY
• RANGE
ELEMENTS OF ZEROING
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• ZERO
• TRUE ZERO
• BATTLESIGHT ZERO
TYPES OF ZEROS
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FRONT SIGHT:• TO RAISE, TURN CLOCKWISE• TO LOWER, TURN COUNTER CLOCKWISE
RIFLE SIGHTING SYSTEM – FRONT SIGHT POST
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REAR SIGHT:• ELEVATION• WINDAGE
aperture for limited visibility and moving target
windage index mark
RIFLE SIGHTING SYSTEM– REAR SIGHT
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WINDAGE AND ELEVATION RULES
M16A2
M16A4
M4 Carbine
Front Sight Elevation 1 ¼” 1 3/8” 1 7/8”
Rear Sight Elevation 1” ½” 3/4”
Windage ½” ½” ½”
• For every 100 yards of range from the target, one (1) click will move the strike of the bullet on the target approximately:
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OBJECTIVE REAR SIGHT ELEVATION SETTINGS
M16A2
M16A4/ M4 CARBINE
200 YARDS 8/3 – 2 6/3 – 2
300 YARDS 8/3 6/3
500 YARDS 5 5
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FACTORS AFFECTING ACCURACY OF A BZO
• FIVE FACTORS
• STABILTY OF HOLD
• SLING TENSION
• TRIGGER CONTROL
• SIGHT PICTURE