After breakfast, when Cai Ruichen walked out of the base with an SVD sniper rifle, Natasha was already waiting for him here.

After seeing Cai Ruichen walk out and bring all the sniper equipment with her, Natasha also took out her majesty as an instructor and asked Cai Ruichen to follow her and walk towards the mountain on the left.

Half an hour later, the two stopped on a mountainside near the outside of the valley.

"Commander, are you going to learn how to be a good sniper, or do you just need to learn how to counter sniping?" On the mountainside, Natasha asked Cai Ruichen.

"Since they are all learning, and they plan to put in sweat and hard work, they naturally have to learn the whole set. And I'm in virtual reality, and I don't want to be abused all the time. Cai Ruichen shrugged, seemingly indifferent, but his tone was very firm.

"Then I'll teach you the most comprehensive sniper tactics." Natasha suddenly turned to Cai Ruichen and asked, "Then what do you think is the first thing you need to learn as a sniper?" ”

The latter thought for a moment and said, "Camouflage? ”

Natasha shook her head, waiting for him to continue guessing.

"Accurate shooting?"

Shaking his head again.

"Patience?"

Still shaking his head.

"Sixth sense?"

After listening to four answers in a row, none of them were answers, and Natasha could only say: "Ranging, that is, measuring distance, and it does not rely on any instrument, only based on experience and eyesight to calculate the distance of the target." ”

"Well, what's the use of this, which sniper doesn't have a professional telescope ready now. You can see it with a telescope. Cai Ruichen asked.

Natasha shook her head and said: "Although the equipment is advanced, it is not absolutely infallible, but it is my own experience and long-term training of eyesight that is the most trustworthy."

Good snipers often perform the kind of sniping missions that go deep into the rear, and what if the equipment is lost? And in a real battlefield environment, anything can happen, let alone a telescope, what if the observer hand dies? ”

Hearing Natasha's words, Cai Ruichen realized that he was taking things for granted, and asked from the perspective of a student: "Then how do you start studying?" ”

"It's easy, first of all, you have to know how much a hundred meters is a distance, and if there is an unknown distance, just calculate how many hundred meters can be placed in that place to know the approximate distance.

Note that if the terrain is upward, it will give you the illusion of being farther away, and if the terrain is downward, it will give you the illusion of being closer, and the disadvantage of the 100-meter unit measurement method is that you can only get more accurate measurements on relatively flat terrain, which is especially important for measuring long distances.

If the target appears 100 meters or more away and the sniper can only see a portion of the terrain from the target, the 100-meter unit measurement will not be accurate in this case. ”

Natasha's words were said very slowly, so that Cai Ruichen could hear them as clearly as possible and write them down.

Cai Ruichen is also very serious, after all, with a teacher like Natasha, there are few people in the world who have such treatment.

After Cai Ruichen asked a few things that were not very clear, Natasha began to introduce another measurement method - the standard appearance measurement method.

This method uses the true size and characteristics of the target to measure the distance to the target.

To put it simply, for example, a driver does not need to know the real distance between him and the car in front of him in order to safely pass it from a sufficient position, assuming that the driver knows how long a kilometer is, and there is an oncoming car that is 3 cm high and 4 cm wide, and the two front lights are 3 cm apart, when he sees a car of the same size next time he knows that the distance between him and the car is one kilometer.

This method can also be used by snipers to determine distance, and by comparing the size and characteristics of some people or objects at a known distance, they can be compared to their size and characteristics at an unknown distance.

When using the target appearance measurement method, the sniper must be very aware of the size and characteristics of the object at different distances, e.g. the sniper notes the size of a person standing at a distance of 100 meters, and then notes the size of the person kneeling and crouching at the same distance.

If the observation is repeated from 100 to 500 meters, the sniper will naturally develop a set of distance observation skills, and the sniper will also need to practice with other objects or vehicles.

This method, there is no requirement, that is, the sniper can have a good mental image memory ability.

It is also an ability that almost every sniper must have, and it is considered a basic introductory course.

Under Natasha's detailed explanation, Cai Ruichen listened very carefully, and in the explanation, Natasha also told some of her own opinions from time to time, and gave him some vivid examples.

It's just that when Cai Ruichen felt that he already knew everything and only needed to train well, Natasha continued: "In a good environment, whether it is a 100-meter unit measurement method or a target appearance measurement method, it is feasible, but a good environment on the battlefield can be described as unique. ”

"As you said, what if there were no tools and the observer was dead?" Cai Ruichen frowned and said.

"So snipers need to mix the two methods. The terrain will limit the 100-meter unit measurement method and the visibility will also affect the measurement of the appearance of the target.

For example, a sniper cannot clearly see the terrain between him and the target, but he has enough visibility to estimate the distance.

Even if the target appears to be blurry, it can still be used to determine the distance from its appearance, so an experienced sniper can achieve 90% accuracy by using a combination of the two methods. Natasha said.

Hearing that an experienced sniper was only 90%, Cai Ruichen asked curiously, "What about you?" ”

“99.99%。” Natasha did not shy away from saying, "As long as there is no obstruction, I can see the target four kilometers away, and I can also understand the change in the distance between each ten meters within these four thousand meters." ”

In addition to these two words, Cai Ruichen didn't know what words to use to describe Natasha's impression in his mind.

Although he really wanted to reach that level in his heart, Cai Ruichen knew very well that it was impossible for him, at least he didn't have such a perverted visual distance.

Natasha didn't know that in Cai Ruichen's mind, he had become an eye-catching beauty and a super pervert, but even if he knew, it was like that.

Natasha continued: "Let me tell you how to use the scale of the scope to calculate the distance to the target. This method requires observation with a scope or telescope equipped with a millimeter scale, and the distance to the target is calculated using the height of the target on the scale, and the calculation equation is fixed.

First of all, we must know or judge the true size height of the target in advance, and then multiply it by one thousand divided by the size of the target on the scale (mm), which is equal to the distance of the target. ”

"It seems that there are still devices that need to be a little simpler." After Cai Ruichen heard the last method, he smiled inexplicably and said.

"That's for sure, otherwise what to do with inventing those things, since they were invented, they naturally have to be used." Natasha said disapprehantly.

"After the theory is finished, which one should I start training from?" Cai Ruichen asked.

Natasha said unceremoniously: "Starting from the visual inspection, you first keep in mind the length of the distance of 100 meters, as well as the length of the difference in various environments, and give you a morning, if you can't achieve 80% accuracy in visual inspection, you are not suitable to be a sniper." ”

"I'll leave you speechless." Cai Ruichen smiled confidently and said.

"Then I hope that the commander's ability is as powerful as his mouth."