"I think so, taking into account the advantages and disadvantages of various calibers, I think that our new intermediate power bullet is set at 7mm is the most suitable, as for the length of the cartridge, I haven't thought about it carefully, but between 39 and 48mm can still be determined......"

Just when Bai Yi was surprised and a little dumbfounded, Chen Yaoyang had already begun a new round of talking, talking about selflessness, and even took out the small notebook he carried with him, and brought it to Bai Yi to talk and draw, with pictures and texts, which made Chen Yaoyang's face even more vibrant. Pen & Fun & Pavilion www.biquge.info

But Bai Yi's already tired face became more and more helpless, to be honest, he really wanted to say to Chen Yaoyang, big brother, you just let go of your brother, you have to do a good job of calibrating the gun today, otherwise it will be useless to shoot tomorrow, but as soon as these words came to his mouth, he was swallowed back by Bai Yi.

It's not that I don't want to say it, but I didn't say it at all, in the past few days, I was so annoyed by Chen Yaoyang that I couldn't help it, Bai Yi didn't say anything like that, after Chen Yaoyang heard it, he was indeed very conscious, and left quietly with a little frustration, but after a few minutes, Chen Yaoyang would run back again with a look of hope, how to ask and how to ask, as if Bai Yi didn't say anything just now.

There is no way Bai Yi can only keep saying some extremely difficult theories, 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 it will take a long time to think about it, which really makes Bai Yi's ears a lot quieter.

However, no matter how deep the problem is, it will eventually be exhausted, for example, last night, Bai Yi threw out a few questions one after another, and Chen Yaoyang answered them well, but when he asked, he knew that he had asked these theories a few days ago, which made Bai Yi very embarrassed, but Chen Yaoyang was even more excited, and the chatterbox could not be contained, so it was a whole night of "knee-long talk", which made Bai Yi until now as soon as he closed his eyes, all kinds of bullets flew up and down in his mind, which was more terrifying than the real battlefield.

"If it goes on like this, before this guy can make an intermediate power bullet, I guess I'm going to hit the bullet at that end."

Looking at Chen Yaoyang, who was foaming at the mouth and talking more energetically, Bai Yi secretly thought in his heart, he was a person who didn't like trouble, even if he had any research projects in his previous life, as long as he didn't put pressure on himself, he would never take the initiative to take things over, of course, if trouble came to the door, it would be another matter.

Now a "big trouble" is chasing him around, so that Bai Yi at this moment finally made up his mind to completely solve this trouble, not for anything else, just to be able to sleep peacefully today, thinking of this, Bai Yi settled down, put the half-corrected Horse brand pistol (Browning M1903 pistol) in his hand on the table,

Immediately turned around and leaned against the edge of the table, clasped his hands around his chest, looked up and down at Chen Yaoyang, who looked excited, up and down, and said solemnly: "What I said a few days ago, where did you hear it?" The key to the power of the bullet is not the size of the caliber, but the overall design, the matching of the bullet type and the related materials applied! ”

"Uh...... Did you say that? I...... Why can't I remember? Chen Yaoyang was stunned at first when he heard this, and then he began to flip through the notebook in his hand, but before he could turn a few pages, he was interrupted by Bai Yi reaching out: "Don't turn 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 face was as usual, as if he didn't remember the technical points he just said to Chen Yaoyang, and he knew it for a long time, in fact, where did he say such a thing before, it was just a fierce material thrown out in order to stop Chen Yaoyang's words, of course, Bai Yi naturally couldn't say it.

Chen Yaoyang is a simple-minded technical nerd, for Bai Yi, who has countless advanced theories, he has long admired Bai Yi with little stars in his eyes, and he almost didn't see Bai Yi as a saint, how can he still have any doubts, so he believes that Bai Yi must have said it before, but he was stupid and didn't remember it.

So he didn't say much, straightened the good notebook and pen, and was ready to revisit this "technical point that I didn't remember" again, looking at Chen Yaoyang, who did not doubt him, Rao is Bai Yi's face was thick enough and slightly red, but in a blink of an eye, it was solemn and rigorous: "I listened to what you just said, it seems that I don't look down on the 6.5mm rifle bullet of the little devil, that's right, the old round head bullet is really not good, it will only hit a penetrating wound at close range, but the strength at long distance is insufficient, it is indeed not a qualified ammunition."

But don't forget, it's just a small Japanese old-fashioned 6.5mm rifle bullet, not long after the war of aggression against China, they upgraded the round-headed rifle bullet to a pointed bullet, especially the cavity trauma caused by the large aspect ratio, its destructive power is great, compared to the dummy bullet is not much better, otherwise if you think about it carefully, I believe that the Japanese army in Burma should be equipped with this 6.5mm pointed bullet! ”

Hearing this, Chen Yaoyang thought that it was indeed as Bai Yi said, the wounds of the Japanese troops stationed in Burma using the "38 Big Gai" to kill at close range were indeed terrifying, and the treatment was also very tricky, even if they were lucky enough to be rescued, most of them would be left with lifelong disabilities, and in fact this was indeed the case.

When the Japanese army first launched the war of aggression against China, the guns and bullets used were still 6.5mm round-headed bullets accumulated in stock, and there were serious deficiencies in terms of charge, ballistics and lethality, especially at close range, which were prone to penetrating injuries rather than destructive fatal injuries.

It's just that this feature leads to another helpless result, that is, the warhead that penetrates the human body, when entering another human body, due to the weakening of the speed kinetic energy, the warhead will roll in the body of the second person, resulting in fatal cavity trauma, and this also leads to the Japanese army to withdraw the bullet from the chamber when fighting the bayonet to avoid unnecessary accidental injury caused by their own bullets.

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 cartridge, which has a huge close-range lethality, even if the 7.92mm rifle cartridge of the official rifle is less than half a cent cheaper than it.

However, at that time, Japan's industrial capacity was insufficient, and this new type of guns and ammunition was distributed to the first-line field divisions with strong combat effectiveness, and the second- or third-line troops deployed in China who were responsible for defense and law and order still used 6.5mm round-head bullets with huge stocks, and the later reloading of 7.7mm rifle cartridges equipped with Type 99 rifles led to a further reduction in the production index of 6.5mm pointed bullets, so there were rumors that the lethality of 6.5mm bullets was insufficient.

However, Bai Yi, who had participated in several gun and bullet power tests 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 in the battlefield behind enemy lines, and this also led to the argument that the little devil's 6.5mm gun bullet was not lethal for a long time.

Chen Yaoyang, who participated in the Burma counteroffensive, actually knew about the 6.5mm pointed bullets, but first, he was an artillery soldier and did not participate in the front-line bloody battles; second, when the Burmese counteroffensive, the troops stationed in India could be described as devastated, and the Japanese army was defeated in a few rounds, so Chen Yaoyang did not think deeply.

Only the domestic inertia attempt to judge its performance, but after Bai Yi reminded him, he suddenly realized that the little devil's 6.5mm bullet is not as Bai Yi said, and the lethality is really amazing, so Chen Yaoyang scratched his head embarrassedly, and said with a wry smile: "I'm still a little careless, I didn't think about things so rigorously, Chief Bai, don't be angry, I ......"

Without waiting for Chen Yaoyang to finish speaking, Bai Yi waved his hand nonchalantly: "It's okay, you are a good comrade if you know your mistakes and can correct them, of course, I am not just thinking about the problem to be rigorous and meticulous, but to find his advantages from the 6.5mm rifle bullet, why can it produce so much power at close range?" ”

"This ......" Chen Yaoyang frowned and pondered, but he 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, flipped to a blank page and brushed a few strokes, drew a sketch of the warhead of a 6.5mm Tomosaka rifle bullet, and then clicked the slender bullet with the tip of the pen and continued: "I just said a word, called the length-to-diameter ratio, as the name suggests, is the ratio of the length of the warhead to its diameter.

According to the classical aerodynamic theory, in the process of streamlining from one medium to another, due to the conversion of kinetic energy and density, the streamliner will undergo a certain deflection, and the probability of deflection depends on the aspect ratio of the streamline, that is, the larger the length-diameter ratio, the greater the roll probability of the streamline crossing different media.

It's like we shoot something with a slingshot like water, the stone will burrow into the water, but the sharp stick will produce an irregular rolling tendency in the water during the process of entering the water, which is based on this principle, since we know this principle, the 6.5mm pointed bullet is lethal.

It is understandable, nothing else, just because of its large aspect ratio, it can occur irregular rolling in the human body, resulting in large cavity trauma, and because of this, the lethality of the 6.5mm bullet is only higher than several bullets of the same era, and it is precisely because of this that I will say that the key to the lethality of ammunition is not in the caliber, but in whether it can produce large cavity trauma to living media such as the human body.

So I personally think that we can completely put aside the limitations of caliber and focus on the bullet type and overall design, so that we can completely put aside the shackles of foreign countries and develop a small-caliber ammunition whose lethality is not weaker than that of foreign bullets! ”