"It's nothing, lately, maybe I've been too busy, the housework at home is really too busy, so during the time you are leaving, my housework ......"

Zheng Lin gritted his teeth and nodded: "I've got it." ”

Lao Ma received Liu Xuanying's signal, took out a piece of paper from his bag, and handed it to Zheng Lin.

Seeing Zheng Lin take over the ballistic performance table, Lao Ma took out a high-powered observation glass from a box next to him, installed it on the steel post standing next to the shooting position, and then put on earplugs and earmuffs.

Zheng Lin stuffed the ballistic performance meter he had finished reading into his pocket, stood up, stretched out his right hand, and prepared to measure the distance with the jumping eye method.

"In the direction of twelve o'clock, the first row is marked with the target of 'Heavy Machine Measurement 01', which is 1923 meters away and 17.7 meters down; No cross wind, no oblique wind, wind deviation does not need to be corrected; No pitch correction; When shooting, pay attention to ground airflow interference. ”

Listening to the data reported by Lao Ma, Zheng Lin was stunned, calculated in his heart, put on earplugs and earmuffs, twisted the high and low knobs a few times, opened the insurance, took a few deep breaths, inhaled, and pulled the trigger......

"Bang ......"

After a second or two, the old horse reported the target with some regret: "Downward." ”

Zheng Lin was stunned for a moment, put his eyes on the scope, observed it, and his face turned red all of a sudden: it was not biased at all, it was directly off target.

Zheng Lin did not give up, put on the earplugs and earmuffs again, reset the scope to zero, readjusted, and pulled the trigger......

"Bang ......"

This time, the old horse did not report the target, Zheng Lin tilted his head and found that his father was standing behind him.

Liuyun, who was wearing earmuffs, nodded at the old horse: "Go on." ”

The old horse hesitated for a moment and continued to report the target: "Biased." ”

Seeing that Zheng Lin was a little deflated, Lao Ma smiled: "Try again!" ”

Zheng Lin nodded, rubbed his shoulders, and re-aimed to shoot......

"On target."

Hearing the target report, Zheng Lin closed the safety and looked through the scope, and the bullet was just grazing the head of the humanoid steel target, leaving an arc on the steel target.

Zheng Lin glanced at Liu Xuanying, who looked concerned, shook his head, and stood up.

Liuyun's gaze retracted from a distance, sighed, and looked at the old horse beside him: "Old horse, come on!" ”

Liuyun patted Zheng Lin on the shoulder: "Little Sixteen, you observe the landing point." ”

Zheng Lin nodded, walked to the chair next to the observation mirror, sat down, and put his eyes on the observation scope.

The old horse got to the stall, his eyes came to the scope, and after observing for a long time, he began to prepare to shoot, took a few deep breaths, opened the safety, and pulled the trigger......

"Bang ......"

"Two rings."

Hearing the target report, Lao Ma stood up, rubbed his shoulders, and looked at Zheng Lin with a surprised face with a wry smile: "This is already my best result in shooting dozens of shots." You can only shoot once at a time, and if you have too much, you can't carry it on your shoulder, so it's not allowed. ”

Liu Xuanying, who was next to her, took off the soundproof earmuffs and looked at Liuyun with a smile: "Dad, why don't you try it too?" ”

When Zheng Lin heard this, he was a little moved: "Dad, can you show me?" ”

"Okay!"

Liuyun sighed, bent down to pick up the gun, knelt down with the gun, and put his eyes on the scope.

"1920 meters, shooting." As soon as Liuyun's voice fell, the gun rang out......

"Bang ......"

"2020 meters, shooting."

"Bang ......"

"2120 meters, shooting."

"Bang ......"

"2220 meters, shooting."

"Bang ......"

"2320 meters, shooting."

"Bang ......"

"2420 meters, shooting at the limit distance."

"Bang ......"

After firing the last shot, Liuyun pulled the bolt a few times, and after making sure that there were no bullets in the chamber, he put the gun on the ground.

The old horse stared and put down the observation glass, stood up, looked at Liuyun like a monster, was stunned for a long time, and stammered to the target: "All, all, ten rings." ”

Next to him, Zheng Lin stood there weakly, with a loveless expression.

Liu Xuanying, on the other hand, seems to have been mentally prepared, with a proud expression.

Liuyun patted Zheng Lin on the shoulder: "The evaporative air flow of snow on the ground affects not only the ballistic process speed of the bullet, but also the ballistic descent resistance and the refractive index of the air. ”

As he spoke, Liuyun looked at Lao Ma with a smile: "The refractive index can be roughly estimated, but the ballistic speed and descent resistance can not be calculated by the human brain, and can only rely on countless shooting experience." Your title as a senior technician, I'm a little sorry for you. ”

"It's over."

Liuyun glanced at Zheng Lin, who was blushing, and smiled: "You don't have to be discouraged, after a thousand meters, the ballistic altitude drops by more than five meters, and if there is a trace of impact, it will lead to off-target, plus the accuracy of the gun itself, it is even more difficult." ”

Liuyun sighed, affected by the processing accuracy, the guns that can be mass-produced in the Jiuquan Arsenal now have a maximum accuracy of only 1MOA, which is still an accuracy that can only be achieved by hand-produced bullets in small batches.

And a firearm with an accuracy of 1MOA, fired at a distance of 1000 meters, has a dispersion diameter of about 29 centimeters, while the width of the human head is less than 20 centimeters. In other words, a well-trained soldier can only guarantee a 100 percent headshot at a distance of 650 meters by aiming at the center of the face, that is, between the eyes. But if you aim at the upper abdomen and shoot, counting the impact of other factors on accuracy, at a distance of 1,300 meters, you can still guarantee a one-hit kill.

If you want to shoot a headshot outside the accuracy range, there is only one way, "man and gun in one": understand the rules of bullet dispersion when shooting, and predict the bias of the next bullet; To put it bluntly, it is to rely on Meng.

And the reason why Liuyun gave Zheng Lin eye medicine was because they might soon encounter the Japanese.

And the relatively tall Chinese, and the short Japanese shoot each other, the same precision of firearms, the same quality: the probability of the Japanese hitting the Chinese will be greater, because the short Japanese, the target is relatively small.

And the difference in the probability of two people being shot, extended to the number of duels on the scale of the group army, has become more deaths.

Not to mention, the accuracy of the 38 big cover now equipped by Japan is better than that of the 24 type produced by the Three People's Party, and it is also easier to control the recoil and increase the rate of fire.

Liu Yun looked at Zheng Lin, who had calmed down, sighed, and said patiently: "The design and use of anti-materiel rifles is to deal with the enemy's important equipment and light armored vehicles, and the future policy of the Chinese Communist Party against the enemy is basically based on Mao Yongzhi's movement warfare. And you still have a lot of room for improvement in the use of the Springfield rifle in your hand; When, if you can hit a target at the limit of range, it is not too late to equip yourself with an anti-materiel rifle. ”

Zheng Lin nodded: "Hmm." ”

"Then you can go back first."

Looking at Zheng Lin's back, Liuyun sighed and looked at Lao Ma with a smile: "Children, there are too many victories, and some are inflated, please trouble you for a while, let them open their eyes, see outsiders, and save themselves from suffering losses on the battlefield in the future." ”

The old horse nodded solemnly.