Solemnly lying 400 meters away from the half-length target, the camouflage uniform has been soaked by the water on the ground.

Fortunately, the rain stopped, and the light was much better than when it rained before.

The valley was washed once by the rain, and even the air was filled with the fragrance of wild grass.

However, the cold wind blew up in the mountains, blowing on the wet camouflage uniform, making the body temperature a little shivering.

When Zhuang Yan got down in the shooting position and looked at the half-length target in the distance from the notched rear sight and the cylindrical front sight of the 81-1 automatic rifle, he understood what a marksman was.

The eight veterans who have obtained marksman qualifications lying next to him are definitely not as simple as he imagined.

Because the target is almost gone!

Outside the firing line, all the officers and soldiers focused on the solemn body.

"Wind... boy, wind..."

Zhang Jianxing squeezed his chin hard, touched the stubble of the beard that was harder than the hair on the brush, and kept talking about a key factor.

wind.

Now, Zhuang Yan is a full 400 meters away from the half-length target.

What distance is this?

According to Zhu Yuan of the 81-1 automatic rifle, the maximum direct shooting distance of this gun is only 400 meters, and the side shooting distance will reach 500 meters.

Now this shooting mode is equivalent to the ultimate use of guns and people!

"Company commander, this is the assessment standard for a special-class shooter." Yin Xiancong, who was beside him, couldn't help but say, "Solemn... Can it be done?"

Zhang Jianxing was a little unhappy and said: "What can I do? He blew the bull by himself. Deputy Master Cai is here. Can't I go up and stop it? This guy! It's this **** temper! I will never know how high the sky is."

What Zhang Jianxing is most worried about is that Zhuang Yan has never tried to shoot a half-length target at 400 meters.

Because the 81-1 automatic rifle is a mechanical sight, although the rear sight is designed for the position of the rear door, there are 5 gears in total, and the shooter can set 1-5 gears according to the distance of 100, 200, 300, 400, and 500 meters, respectively. Therefore, Zhang Jianxing is not very worried about the high and low shooting angles.

What worries Zhang Jianxing most is Zhuang Yan's understanding of wind.

That's right.

Just wind.

Shooting seems simple, but it will never be the one in the movie that can be killed by just swiping a gun. That is a god, not a human being.

Even the best snipers often put a sticker on the stock of their sniper rifle, which is printed with various correction formulas for the gun.

This is the ultimate.

Why is it complicated?

Take the wind as an example, there are three criteria for the special archer to judge the wind direction - weak wind, moderate wind and strong wind.

In terms of direction, there are cross winds, vertical winds, and diagonal winds.

In terms of intensity, there are weak winds, moderate winds, and strong winds.

Among them, the crosswind that most affects the shooting trajectory is the crosswind.

The cross-weak wind standard is the wind speed of 2-3 meters per second, which is equivalent to the secondary wind; the horizontal wind standard is the wind speed of 4-7 meters per second, which is equivalent to the third- to fourth-level wind; and the cross-strong wind speed is 8-12 per second. meters, which is equivalent to a fifth to sixth wind.

Snipers usually have a small wind speed calculator in their hands to simply measure the wind speed.

However, if the prime shooter uses mechanical sights and hits a target 400 meters away in windy conditions without any assistance, he needs enough experience and talent.

If there is no wind speed calculator, then it depends on visual observation and perception.

How to perceive?

When the wind is weak, people feel that the face and hands are slightly windy, and the feeling of moderate wind is that there is obviously wind, and a slight whining wind can be heard, but you can open your eyes when facing the wind; It is obvious resistance to standing or walking, and it is dusty, and it is difficult to open eyes to the wind.

Not only human perception, but more than a dozen common objects and plants can make estimates of wind.

For example, when the wind is weak, the grass moves slightly. When the wind is mild, the grass is easily bent, and when the wind is strong, the grass is almost blown to the ground.

There is also a tree. When the wind is weak, the shrubs, twigs, and leaves move slightly and rustle; when the wind is mild, the upper edge of the shrub will sway, the twigs on the tree will be bent, and the leaves will shake violently; the strong wind is the easiest to judge. , Because a slightly smaller trunk will bend, and thick branches will shake violently.

Not only these, but also flags, smoke, waves on the sea, fishing boats, or heat waves that evaporate from the ground in desert areas, etc., can judge the level of wind.

However, the older generation of sharpshooters in the army, based on their experience, took the wind as a medium value standard, and thus summed up a formula: the wind has a size, and you can compare it with the wind. You can open your eyes against the wind, hear the sound of whistling, the smoke from the cooking slants, the grass bends and the branches sway, the sea rises light waves, and the full sail leans to one side. Strong winds are stronger than it, weak winds are smaller than it.

Once there is wind, it must be corrected. To really calculate the impact of wind on ballistics, there are actually several formulas, including the hit rate calculation formula, the crosswind correction formula, and so on.

There is an old saying among people who play shooting in the local area: One hundred and two hundred do not need to be repaired, three hundred for the ear line, and four hundred for the edge.

However, this is only a little judgment made in the case of cross and wind (wind speed 4 m/s).

Moreover, it is also an extremely general judgment and is not accurate.

Because the special shooter within the army is in horizontal and wind conditions, the correct formula for using mechanical sights to shoot targets within 400 meters is - 100 without repair, 200 aiming at the ear line, 300 aiming at the edge, and 400 at the edge.

Every special shooter, also known as the sharpshooter, has to memorize the "Heavy Wind Correction Scale" from submachine guns, automatic rifles to light machine guns to heavy machine guns.

If he can't carry this thing, let him get out of the way, no one believes that he is a marksman!

Because this is what every veteran of the elite army must know.

Take 500 meters as an example, the environment is weak wind, and the wind is blowing from the right side, how to correct it?

A skilled shooter will do the calculations in his head right away—

(1) If the target distance is 500 meters, the scale is set to 5. Calculated according to the formula, the correction amount of the horizontal wind is: 5-2.5=2.5.

(2) The wind speed is 2-3 m/s as weak wind, and the calculation formula based on moderate wind is reduced by half as required;

(3) The wind blowing from the right front is evil wind, and the effect of evil wind on the ballistics is halved;

(4) The final correction amount is: 1.25-1.25/2 is approximately equal to 0.63 (human body).

Then: When aiming, the aiming point should be corrected by half the body to the right.

That's the calculation of the prime shooter.

Zhuang Yan has never practiced the four exercises, let alone learned these correction formulas, he is just a new recruit.

Zhang Jianxing knew all this very well, so he was worried.

Of all the people present, no one believed that Zhuang Yan could really hit the half-length target 400 meters away, because it was of a magical nature.

The recruits all stretched their necks, UU reading www.uukanshu. com is waiting for Zhuang Yan to shoot. As the same recruits, they are looking forward to Zhuang Yan being able to fight for the recruits.

The veterans mostly watched the excitement, hoping that the eight veteran sharpshooters on the shooting ground could let the new recruit Zhuang Yan know that Lord Ma opened his eyes.

Three bullets, time limit of 10 minutes.

Time passed by, and everyone quietly waited for the gunfire.

bah—

After a long silence, the shooters on the firing ground finally fired.

Zhang Jianxing saw the solemn gun vibrate slightly, and a cloud of light smoke came out.

He knew that the kid shot.

As long as it hits, the opposite target bar will be raised and placed on the bullseye, indicating that the hit is effective.

Everyone held their breath, and everyone focused on the solemn target number 7.