"That's what I think. Taking into account the advantages and disadvantages of various calibers, I think 7mm is the most suitable for our new intermediate-type powerful bullet. As for the length of the cartridge, I haven't thought about it carefully, but it is still possible between 39 and 48mm.

Definitely..."

Just when Bai Yi was surprised and a little dumbfounded, Chen Yaoyang started a new round of eloquence. When he talked about forgetting himself, he even took out the small notebook he carried with him and put it in front of Bai Yi while talking and drawing.

The combination of pictures and text made Chen Yaoyang's face look even brighter.

But Bai Yi's already tired face became more and more helpless. To be honest, he really wanted to tell Chen Yaoyang, "Brother, just let your brother go. You have to have your gun calibrated today, otherwise you won't be able to do the target shooting tomorrow."

It was useless, but as soon as the words came to his lips, Bai Yi swallowed them back.

It's not that I don't want to say it, it's that I don't mean it at all. In the past few days, I was so annoyed by Chen Yaoyang that I couldn't help it. It's not like Bai Yi never said similar things. After hearing this, Chen Yaoyang was indeed very conscious, with a bit of

He left quietly in frustration, but within a few minutes, Chen Yaoyang would run back with a hopeful look on his face, asking whatever he wanted, as if Bai Yi had said nothing just now.

There is no other way that Bai Yi can only keep talking about some extremely difficult theories and let Chen Yaoyang think for himself. Not to mention that this trick is very effective. Chen Yaoyang will always be like a child who gets homework, obediently find a quiet place and think about it.

It took a long time, which really made Bai Yier feel quite at peace.

However, no matter how deep the problem is, it will eventually be exhausted. For example, last night, Bai Yi asked several questions one after another. Chen Yaoyang answered them in a decent way. After asking, he realized that he had been there a few days ago.

I had asked about these theories before, which made Bai Yi

It was very embarrassing, but Chen Yaoyang was even more excited and couldn't hold back his chatter, so they had a whole night of "long conversations". Until now, whenever Bai Yi closes his eyes, all kinds of things are in his mind.

Bullets were flying up and down, which was more terrifying than a real battlefield.

"If this continues, I will probably hit the bullet before this guy comes up with an intermediate-type powerful bullet."

Looking at Chen Yaoyang, who was frothing and getting more energetic as he talked, Bai Yi secretly thought to himself that he was a person who didn't like trouble. Even if he had some research projects in his previous life, as long as it didn't put pressure on him, he would never take the initiative to take matters into his own hands.

Of course, if trouble comes knocking on your doorstep, that's a different matter.

Nowadays, a "big trouble" is chasing him everywhere. At this moment, Bai Yi finally makes up his mind to solve this trouble completely, not for anything else, just to sleep peacefully today. Thinking of this, Bai Yi is determined.

After calming down, he placed the half-calibrated Continental gun (Browning M1903 pistol) in his hand on the table.

He immediately turned around and leaned against the edge of the table, folded his hands around his chest, looked up and down at Chen Yaoyang, who looked excited, and said solemnly: "Where did you hear what I said a few days ago? The key to affecting the power of bullets.

It’s not the size of the caliber, but the overall design, the matching of the bullet type and the related materials used!”

"Um...did you say that? I...why can't I remember?" Chen Yaoyang was startled when he heard this, and then he started flipping through the notebook in his hand, but before he could flip through a few pages,

He was interrupted by Bai Yi who stretched out his hand: "Don't scroll through it yet. There are so many theories these days. It doesn't matter if you forget one or two, but the key points still need to be remembered..."

Bai Yi's expression was as usual, as if Chen Yaoyang hadn't remembered the technical points he just said and already knew them well. In fact, he had never said such a thing before. It was just a piece of information thrown out to stop Chen Yaoyang.

, of course Bai Yi couldn't say this.

Chen Yaoyang is a technical geek with a simple mind. For Bai Yi, who has countless advanced theories, he has long admired Bai Yi with little stars in his eyes. He almost regarded Bai Yi as a saint. There is no doubt at all, so he

I believe that Bai Yi must have said it before, but he was too stupid to remember it.

So he stopped talking and straightened up his good notebook and pen, preparing to review this "unremembered technical point" again. Looking at Chen Yaoyang who had no doubt that he was there, Bai Yi blushed slightly even though he was thick-skinned.

For a moment, but in the blink of an eye, he was solemn again

Rigorous: "From what you just said, I seem to be a little disdainful of the 6.5mm rifle bullet of the Little Devil. Yes, the old round-nose bullet is indeed not that good. It will only cause a penetrating wound at close range, but the force at long distance is not good.

It's not enough, it's really not a qualified ammunition.

But don’t forget, that is just Japan’s old-fashioned 6.5mm rifle bullet. Not long after the war of aggression against China, they upgraded the round-nose rifle bullets to pointed-nose bullets, especially the cavity trauma caused by the large aspect ratio.

The destructive power is so great that it is not much better than the DUM bullet, otherwise if you think about it carefully, I believe the Japanese army in Myanmar should be equipped with this kind of 6.5mm pointed bullet!"

After hearing this, Chen Yaoyang thought that it was indeed as Bai Yi said. The wounds caused by the Japanese troops stationed in Burma using the "San Ba ​​Da Gai" to kill and kill people at close range were indeed horrifyingly large and difficult to treat. Even if they were lucky enough to be rescued, most of them would not be able to survive.

It will also leave a lifelong disability, which is indeed the case.

When the Japanese army first launched the war of aggression against China, the bullets they used were still 6.5mm round-nosed bullets accumulated in stock. They had serious deficiencies in terms of charge, ballistics and lethality. Especially at close range, they were prone to penetrating wounds rather than

devastating fatal wound,

However, this feature leads to another helpless result, that is, when a warhead that penetrates the human body enters another human body, due to the weakening of speed and kinetic energy, the warhead will roll sideways in the second person's body, creating a fatal cavity.

Trauma, which also caused the Japanese army to withdraw the bullet from the barrel when fighting with the bayonet to prevent their own bullets from causing unnecessary accidental injuries.

However, the shortcomings of the 6.5mm bullet were quickly improved by the Japanese army, and this is the re-optimized 6.5mm pointed rifle bullet. The close-range lethality of this bullet is very huge, even if it is the 7.92mm of the official rifle

Compared to this, rifle bullets are less than half a cent cheaper.

However, Japan's industrial capabilities at the time were insufficient, and this new type of ammunition was distributed to front-line field divisions with strong combat effectiveness. As for the second- or third-line troops deployed in China responsible for defense and maintaining public security, they still used the huge inventory of 6.5mm rounds.

Pointed bullets, coupled with the replacement of the 7.7mm rifle bullets that were later equipped with the Type 99 rifle, led to further compression of the production indicators of 6.5mm pointed bullets, so there were rumors that the 6.5mm bullets were insufficient in lethality.

However, Bai Yi, who had participated in field tests of the power of several bullets in his previous life, knew that the power of the Little Devil's 6.5mm pointed bullet was not bad, but it was not widely used in the Chinese battlefield, especially the battlefield behind enemy lines, and this

This has also led to the enduring argument that the 6.5mm bullets of the Little Devils are not lethal enough.

Chen Yaoyang, who had participated in the Burmese counterattack, actually knew about the 6.5mm pointed bullets. However, he was an artilleryman and did not participate in the frontline fighting. Secondly, during the Burmese counterattack, the Indian troops were devastated and fell within a few rounds.

The Japanese army was defeated, so Chen Yaoyang didn't think too deeply about it.

Its performance can only be judged based on domestic inertial experiments. But after Bai Yi reminded me, I suddenly realized that the 6.5mm bullet of the Little Devil is not as Bo Yi said, and its lethality is really amazing. So Chen Yaoyang scratched his head in embarrassment.

He smiled and said: "I was still a little careless and didn't think about things so rigorously. Chief Bai, don't be angry. I..."

Before Chen Yaoyang could finish his words, Bai Yi waved his hand nonchalantly: "It's okay. If you know your mistakes and can correct them, you are a good comrade. Of course, what I'm talking about is not just about thinking carefully and carefully, but about starting from the 6.5mm rifle bullet."

Find its advantages, why can it produce such great power at close range?"

"This..." Chen Yaoyang frowned in thought, but couldn't think of a reason, so he was about to ask, but before he could say anything, Bai Yi had already taken his notebook and pen and turned to a blank page.

I brushed a few strokes and drew a sketch of the warhead of a 6.5mm Tomosaka rifle bullet. Then I tapped the slender warhead with the tip of the pen and continued: "I just said a word, called the aspect ratio. As the name suggests, it is the length of the warhead and its diameter.

The ratio.

According to the classical aerodynamic theory, when a streamline body moves from one medium to another medium, due to the conversion of kinetic energy and density, the streamline body will deflect to a certain extent, and the probability of deflection depends on the streamline body.

The aspect ratio of the object, that is, the greater the aspect ratio, the greater the roll probability of a streamline body crossing different media.

This is like using a slingshot to shoot things into the water. The stones will go into the water one after another, but the sharp wooden sticks will have an irregular rolling tendency in the water when they enter the water. It is based on this principle.

Now that we know this principle, the 6.5mm pointed bullet is very lethal.

It’s understandable. Nothing else. Just because of its large length-to-diameter ratio, it can roll irregularly in the human body, causing large cavity trauma. Because of this, the lethality of the 6.5mm bullet is higher than that of several of its contemporaries.

Bullets are only high, not low, and because of this, I would say that the key to the lethality of ammunition is not the caliber, but whether it can cause large cavity trauma to living media such as the human body.

So I personally think that we can completely put aside the limitation of caliber and focus on the bullet type and overall design. In this way, we can completely put aside the shackles of foreign countries and develop a small weapon that is not weaker than foreign bullets.
Chapter completed!