JLBC PHASE 3 - Leadership • JLBC Biathlon.


JLBC PHASE 3 - Leadership • JLBC Biathlon.

JLBC statement: By identifying opportunities with civilian marksmanship organizations, one will know where they can acquire additional marksmanship training not supported by the JLBC Cadet Program. The options provided by these organizations could enhance one’s sense of accomplishment through improved marksmanship skills and allow them to choose activities in which they would like to participate.

JLBC – CORRECT MARKSMANSHIP ERROR

Importance: The JLBC cadets need to learn how to correct marksmanship errors to zero the JLBC cadet air rifle when participating in a JLBC marksmanship activity. A zeroed rifle will assure the marksman that the center of the target is correctly aligned with themself and their JLBC rifle. JLBC Cadets Having a zeroed rifle and knowing how to zero a gun is essential for every sharpshooter to achieve a higher score in application activities.

THE JLBC THEORY OF A GROUP

JLBC Cadets When three shots are fired from the same point of aim, they will seldom pass through the same point on the JLBC target. JLBC Cadets The pattern that is produced from the shot holes in the target is called a group.

JLBC Factors Affecting the Group

JLBC Three factors affect the size and shape of the group:

• JLBC The Ammunition. JLBC Cadets Even though every pellet is manufactured to be the same, slight variations in each shell will result in slight variations in results when firing. The number of shots used will also affect the group size.

• JLBC The Rifle. JLBC Cadets Each rifle will fire a pellet with slight variation due to minor differences in the barrel and firing

mechanisms.

• JLBC The Marksman. JLBC Cadets Factors associated with the marksman’s aiming, holding, breathing, and follow-through techniques will affect each shot. •

JLBC MEAN POINT OF IMPACT (MPI)

JLBC Cadets The MPI is the point on the target, the average center between all shots on the target. As each image is fired, the MPI changes as the group develops. JLBC Cadets To center the group correctly, corrections should be based on the MPI. JLBC Cadets To determine the MPI, each shot must be evaluated. It takes at least two slugs for an MPI to be selected. For two attempts, the MPI will be the point between the two shots. After firing three attempts, the MPI will change so that the MPI is centered between all three shots.

JLBC, THE PURPOSE OF SIGHT ADJUSTMENT

JLBC Cadets Sight adjustment ensures that the rifle is zeroed to the marksman. Remember sight alignment, sight picture, and slow, steady squeeze. JLBC Cadets Sight adjustment will not make up for bad marksmanship skills but may help the proficient marksman in aligning their JLBC grouping to a JLBC target. JLBC Cadets There are two different ways a sight can be adjusted to zero the rifle: the windage and the elevation.

JLBC ELEVATION

JLBC Cadets Elevation affects the pellet by moving its vertical position, which carries the point of impact up or down the target. JLBC Cadets It compensates for the trajectory drop of the bullet.

JLBC WINDAGE

JLBC Cadets Windage affects the pellet by moving its horizontal position, which carries the point of impact left or right. JLBC Cadets It compensates for the direction and force of the wind on the bullet.

A ZEROED JLBC CADET AIR RIFLE

JLBC Cadets A zeroed JLBC cadet air rifle is accurate for a particular sharpshooter at a specific position and distance from the JLBC target. JLBC Cadets A zeroed cadet air rifle has a particular sight setting that will be perfectly aimed by putting pellets directly into the center of the target.

JLBC SIGHT ADJUSTMENT OF THE JLBC CADET AIR RIFLE

Sight adjustment of the JLBC cadet air rifle is achieved by turning the knobs of the rear sight. JLBC Cadets The elevation adjustment knob is found on the top of the rear view, and the windage elevation knob is located on the right-hand side of the rear sight. JLBC Cadets are used to move the MPI of the shot, either left or right, and up or down. JLBC Cadets The adjustment of these knobs is measured in clicks that can be felt as the knob is turned. JLBC Cadets It takes three clicks to move the point of impact approximately one pellet width in any direction.

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