Ordinarily, if the wind is not strong at a distance of more than 300 meters, the ballistic trajectory will not be greatly affected.
The head target used for sniping is much smaller than the ordinary chest ring target, and it also has 10 rings on it.
According to Hou Jun's requirements, 10 rings must be hit to be considered qualified.
To hit the 10-ring bullseye at this distance, you must have more accurate distance data.
Without an observer hand or a rangefinder, you can only measure distance manually.
According to the current conditions, Li Zheng has three distance measurement methods——
The first is to measure the distance by relying on the scope's ranging scale. This method is very simple, because in the center of the 88 sniper scope, there are seven "--" horizontal lines from top to bottom, and the top horizontal line
It is a distance of 1-200 meters, and then going down, each "--" represents a distance of 3, 4, 5, 6, 7, and 8 hundred meters respectively.
The blank space in the center of the two horizontal lines is the key to distance measurement. Use the blank space to trap the target (generally based on the width of the target body being 50CM). As long as the left and right sides of the target can be covered without any extra gaps, it means that this
The standard number next to the horizontal line is the distance value.
The second is to use directional division for ranging. In addition to the "--" horizontal bar from top to bottom, the 88 sniper scope has 5 division scales on the left and right sides of the scope, and each division scale value is 1 density.
Bit.
When the sniper estimates the shooting distance, he covers the target with one side line with different directions (also based on the common value of 50CM for the human body). See how many different lines are blocked on the other side of the target, that is the corresponding target.
Close distance.
Of course, getting this secret position does not mean that you can get the correct distance, because you have to apply a special calculation formula to get the correct distance value.
The calculation formula is: distance = target interval X1000 divided by the density position.
For example, the front width of the human figure's body is 0.5 meters, and 2 dense divisions are blocked on the reticle.
Then, the correct distance should be =0.5X1000 divided by 2=250 (meters).
This kind of simple mathematical problem certainly does not pose any difficulty for Li Zheng, a famous college student.
There is also the visual distance method. This visual distance method is the most common distance measurement method among the Army Special Forces. However, this method requires long-term training and rich experience accumulation, and requires continuous testing of different targets in the field.
Conduct various tests on objects to obtain the most accurate distance measurement method that suits you.
The visual inspection method also includes the comparison method, the visibility judgment method, the eye jump method and other methods.
Even among the PLA Army Special Forces, there is a method for determining distance at night.
Of course, new recruits like Li Zheng are purely rookies at the moment.
Before the live-fire sniper training, Hou Jun explained to them the relevant knowledge of distance measurement, but currently Li Zheng has not even learned the visual measurement method, let alone advanced things like the night-time distance determination method.
A rookie is a rookie.
Li Zheng chose the simplest and most direct method to measure distance - using the seven "--" marks on the top and bottom of the scope to measure distance.
Time is too short, so save whatever you can.
He put the scope on the head target - this is the most common head target. There are many types of head targets, some have only one head, and some have a small shoulder.
The head target that Li Zheng saw so far was the one with shoulders.
This is the simplest.
Because the shoulder represents the width of the human body, the width is also 50CM.
This means that you can use the upper and lower scales to directly calculate the distance.
He moved the crosshair up and down slightly, starting from the first "--" and working his way down.
When I reached the third mark, it seemed to be full.
If you look carefully, you can see that there is no gap, just a little bit.
Li Zheng immediately concluded that the distance was about 360 meters.
At this distance, an error of ten or twenty meters does not have a big impact.
Li Zheng immediately used the second arrow sight to cover the center of the ten rings of the head target, then took a breath and slowly began to exhale.
The index finger is already pressed on the trigger. Press it gently until the pre-loaded position becomes hard. At this time, as long as you apply a little more force, the bullet will come out of the chamber.
However, the advantage of the scope is that it can clearly see the ten rings, but the disadvantage is that it shakes a lot.
Time passes second by second.
30 seconds is not long.
The distance measurement took approximately fifteen seconds.
It's now past half time, with only a little over ten seconds left.
"calm down……"
He kept hypnotizing himself.
"Lower your breath...lower your breath..."
Eventually, the swing of the arrow sight finally slowed down and became smaller.
When the top of the arrow lightly crossed the ten-ring bull's-eye, Li Zheng pressed the trigger.
Bang——
An 88 sniper special ejection chamber.
Li Zheng slowly raised his head.
The bullet has hit the target.
A cloud of dust splattered on the ground behind the target.
Li Zheng looked through the scope and enlarged the magnification.
The bullet hole is on the upper right side of ring 8...
"grass!"
He couldn't help but curse.
You are scolding yourself.
It was clearly caught in the middle of the 10th ring.
Why is it on the right?
Hou Jun, who was not far away, picked up the observation glass hanging on his chest and looked at Li Zheng's head target.
After taking a look, he put down the observation glass, curled his lips, and shook his head, looking very dissatisfied.
Li Zheng clenched his fist and slammed it on the haystack nearby.
This is already the second time I fired today. The whole morning has passed, and my two rounds have all missed...