Liu Xiaotian did not break his promise, and half a month later, a thick layer of calluses formed on both elbows on his sides.

In fact, many people will have a misunderstanding, that is, there is often a plot in some anti-Japanese dramas they have watched:

When the Japanese were investigating anti-Japanese elements, they would always ask people to stretch out their hands to see if there was a gun callus on their index fingers.

It's not that a gun cocoon can't be formed, it's just that if you want to form a gun cocoon, it's not an easy task.

Here's a simple example:

Nowadays, there are more and more people who have served in the army, and aside from those who rarely touch a gun during almost two years of service, it is said that the regular army units will have live ammunition every week on average, and the amount of ammunition consumed is at least 30 rounds each time.

But in the past two years, who has ever seen a soldier with a gun callus on his finger?

Even this word has no entry in a certain degree.

(The author himself is a soldier of the 02nd class, a certain unit of the original field adaptation, heavy machine gunner, 67--1 type, 250 rounds of ammunition chain, 7.62 mm caliber, consumed more than 20,000 rounds of ammunition during two years of service, and his fingers are as smooth as ever.) ）

Gun cocoons generally refer to the calluses on the shoulders that have been worn out by the gun strap due to a long march with a gun on their backs.

For contemporary soldiers, as long as they come into contact with more firearms, they will have calluses on their elbows.

Some people say that heavy sniper rifles will have a tripod and do not use the strength of the elbow.

Then I'll popularize it.

In contrast, a rifle without a tripod is better, and the force used to stabilize the body of the gun with both hands does not need to be particularly strong when shooting with a backing.

Even when firing, the friction caused by the recoil of the elbows is limited.

But guns with tripods, especially squad light machine guns, the tripods are the front points, and the elbows are the rear points, which are distributed in a triangle.

I don't need to tell you about the stability of triangles, right?

The so-called burst is that after the trigger is pulled, the bolt moves forward under the action of the re-entry spring, and the firing pin hits the primer of the bullet, igniting the propellant, producing gunpowder gas, and pushing the bullet forward along the rifling.

The gunpowder gas passes through the air guide hole and pushes the bolt backwards, if the trigger is pulled at this time and does not let go, the bolt will move forward again under the action of the reentry spring after resetting and the cartridge case is ejected from the magazine, forming a continuous fire.

The so-called recoil is the force generated by the gunpowder gas in the process of pushing the bolt backwards through the air hole.

The elbows are used as the two rear points of stress, and in order to keep the gun body stable at this time, it is necessary to have friction with the ground, thus forming calluses.

Although there are few pain nerves in the skin of the human elbow, that refers to the surface of the skin.

Once the skin is broken, it hurts more or more.

With the protection of this layer of calluses, it is possible to ensure that the shooter will not have a skin worn out during a long period of shooting, and the accuracy of shooting will be affected due to pain.

In the past half a month, Liu Xiaotian has proved his perseverance as a soldier.

Even Chen Shanming didn't expect that this recruit with the label of "technical talent" could still have such valuable mental perseverance.

In the process, Liu Xiaotian found that the system did not seem to be as active as it had been at the beginning.

For more than half a month, the system issued only seven training tasks to him.

It's just that, as the system says, the rewards for these low-level tasks are really pitiful.

Seven tasks, plus the ones he had obtained before, his current mission points are only ninety-three points in total.

One of the tasks was only given five rewards after the end of the task, and the angry Liu Xiaotian almost lost his breath.

It is worth mentioning that through this half-month live-fire training, Liu Xiaotian's proficiency in firearm operation and shooting accuracy have been further improved.

Of course, it is not a sniper rifle that is being spoken about here, but an assault rifle.

The electronic picture that appears in the eye that he doesn't aim at every time he shoots, Liu Xiaotian named it "Jarvis", and every time he picked up the gun and prepared to shoot, he had to mutter a sentence before the display was about to appear:

"Jarvis, Data Prep ......"

Once Wang Yanbing happened to hear it, he ran to report to Chen Shanming that Liu Xiaotian had mental problems......

Of course, this is a joke.

After more than a month of getting along, in the eyes of other fighters, Liu Xiaotian seemed to be a completely different person.

And in fact, this is a different person.

It's just that the shell hasn't changed.

Moreover, the relationship between Liu Xiaotian and He Chenguang, Wang Yanbing and Li Erniu is also closer, and it is completely the rhythm of integration.

In addition, Cai Chengxin, who is a little annoying in the TV series, also has a good relationship with him.

It can be said that in terms of getting along with his comrades-in-arms, Liu Xiaotian completely relied on his "ability" to establish friendship with everyone, and he had nothing to do with the system that was smelly and hard, and could make people out of the two miles when he spoke.

At the end of the day's training, Chen Shanming called Liu Xiaotian, who seemed to be on the same page with the Type 10 sniper rifle for several days, and asked with a hint of mystery:

"Tomorrow there will be some special bullets, do you want to change to a Type 88 or Type 85?"

In the past ten days of training, Liu Xiaotian and Wang Yanbing have both set their sights on the big guy of the Type 10 sniper rifle, but He Chenguang is more inclined to Type 88 and Type 85.

Frankly speaking, if it is aimed at a single biological target, the Type 88 with a small caliber, slightly shorter range but good handling performance and a slightly larger caliber and a range of more than a kilometer but slightly worse handling performance are naturally more suitable than the Type 10 sniper rifle with the original design intention and positioning to target equipment.

It's just that Chen Shanming doesn't care about the fighters' respective choices.

What he wants to train now is not a sniper with a targeted mission, but an all-round special soldier.

Every type of gun they'll probably need in future missions, so there's no limit to what you like!

For this alone, the "treatment gap" between these trained fighters and other fighters is enormous.

No matter how you say it, the Iron Fist Regiment is the "label" of a mechanized infantry regiment, how can it consume ammunition without any scruples?

But for the red blood cell group that is about to be formed, there are no limits to ammunition.

It's just that Liu Xiaotian doesn't care about these things at all now.

The moment Chen Shanming asked this sentence, he reacted, this should be the drill in the film and television drama, right?

Although there is a discrepancy in terms of time, if it is not a drill, why change the bullets?

"Instructor Chen, there is a drill tomorrow?" Liu Xiaotian asked straightforwardly.

Chen Shanming smiled bitterly in his heart.

Originally, he was worried that this recruit, who had already made a lot of achievements in the field of scientific research, was too wooden, but in the past half a month of training, he had completely overturned his original prediction, and even had some faint regrets, regretting why this kid couldn't be a little wooden.

Even if there are three points of personality like Li Erniu, it's easy to manage a little, isn't it?

It's good now, He Chenguang and Wang Yanbing, the two thorn leaders who were originally famous in the whole regiment and even in the Wolf Tooth Special Operations Brigade, plus a Liu Xiaotian, Chen Shanming felt a little headache when he thought about it.

"Hmm." Chen Shanming squeezed out a low nasal voice, which was considered an answer......