The first step is to adjust the left and right of the sight so that the center line (vertical line) of the sight is consistent with the impact point of the gun projectile
Please don't worry about the difference between the height of the gun
At this point, the middle distance and long distance, a few more shots to see the gun bullet point, the left and right deviation is consistent
The second step is to test the high and low trajectory
Generally speaking, the optical axis of the sight is calibrated when it leaves the factory, and the left and right deviation is not too large. It can be done in a few minutes
In order to adjust. Larger deviation, is the high and low correction
As the collimator is higher than the axis of gun tube, more efforts should be made in collimation
Test shots at different distances,
According to the gun category
Qi gun can be defined closer, such as 8 meters, 25 meters, 35 meters
Small caliber walking gun can be defined as: 20 meters, 50 meters, 90 meters
According to the different shooting distance set above, shoot three shots each to see the dispersion of the impact point. Generally, there are three most classic dispersion states
The top one, that is, the first one, is the most ideal state. The sight and the barrel axis are nearly parallel. The height difference between the nearest and the nearest impact point is not big
Second, there is a problem in the installation of the sight, and there is a problem of cocking the head. In this way, the gun in the short distance is very low, and the gun in the distance has a lower impact point. It is too low to see the impact point in the sight
Third, there is also a problem in the installation of the aiming glass, that is, the mirror lowers its head. In addition to the close and long-distance impact points being close to the same, the gun bullets in the middle distance (i.e. the common shooting distance) are high and extremely high. This is not conducive to actual combat
Step 3:
According to the test result of the second step, adjust the parallelism of the sight on the gun. Then test fire until the shooting result of the sight is very close to the first standard. At this time, it means that the axis of the sight and the gun tube is nearly parallel
In the sight, the installation state of the sight can be seen from the far, middle, near and three distance bouncing dispersion
Within the bouncing scatter: the scatter of far, middle and near is arranged according to, high, middle and low
Step 4: suppose you are using a small caliber gun,
We will calibrate gun according to the 20 meters, 50 meters and 90 meters commonly used in small caliber step gun. In the near, middle and far three places, the bounce dispersion of the three places presents the state of up, middle and down respectively. We should make good use of the secret sites to calibrate gun
First check the state of the high and low adjustment button of your gun. Please adjust it to the middle position. The so-called middle position means that the adjustment button is not high or low, neither reaching the highest adjustment limit nor the lowest adjustment limit
At this time, aiming at the 50 meter target, we use the adjusting button of the sight to adjust the height. Above the adjusting button, there is an English word: up. This means high in Chinese. There is an arrow next to the word up. Twist it in the direction of the arrow. The bullet is upward, otherwise, the bullet is downward. After break adjustment and test firing, we set the cross division center of the sight on the 50 meter target center, Until there is no deviation in the calibration
The fifth step is to calibrate the short distance and long distance
Because your aim is close. The above close points are not used for decoration, so we started to test fire at a distance of 20 meters. Take a look, the dispersion of the impact point is in the upper grid of the cross line. Then you write it down. It's better to write it down on paper. If the impact point is in the upper three grids, then you write it down
Hit 90 meters again. Look at the scattering point of the bounce, where it is, if the bounce is in the next five squares |
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