But Su Xin still had concerns about Wang Xuexin's idea. She thought about it and said: "Batalion Commander, your idea is indeed very good, and this kind of gun is also very good, but... do we have the ability to produce it? Let's not talk about other things.
Let’s just say this gun barrel…”
Su Xin is an expert. The most important thing about the composition or performance of a gun is actually two points: one is the bullet and the other is the barrel.
As the saying goes, "Look at the bullet first when looking at a gun." The bullet actually plays a decisive role in the gun, such as recoil, range, penetration, etc. After the bullet is designed, a ceiling has basically been set, and then based on the bullet
to design corresponding firearms.
As for the barrel, it is the most important part of a gun and also the most difficult to produce.
To put it bluntly, the gun thing is actually the process of igniting the bullet in the barrel and ejecting the warhead. Although other parts are important, they are not a big problem.
Therefore, Su Xin's consideration makes sense. Although there are bullets, there is no barrel to match the bullets!
Although the Eighth Route Army can produce gun barrels, the barrels are used for Springfield rifles, and the machine tools are also used to produce Springfield barrels. The Eighth Route Army has no ability to produce machine tools, so it cannot be modified unless it is through Yingjiang or Mao.
Bear help...
But Wang Xuexin was very confident. He picked up a bullet and waved it in front of Su Xin and said: "Director Su, have you noticed that the caliber of this bullet is the same as the Springfield rifle? They are both 7.62.
mm!”
Su Xin's eyes widened in an instant, she took the bullet and took a closer look, then took a ruler from the table and measured it, and said with surprise and joy: "It's really 7.62mm! In other words, the Springfield rifle
Can the barrel of the gun be used?”
Wang Xuexin nodded and said: "Not only can it be used, but the production of the barrel will be much simpler!"
"Easier?" Professor Su didn't believe it: "This is impossible!"
According to Professor Su, this is a new gun, and it is also a rifle that can fire continuously. Does that mean the requirements are higher than those of a bolt-action rifle?
But this is actually a layman’s idea.
"Of course it's simpler!" Wang Xuexin explained: "Because the Springfield rifle requires a long range, its barrel is longer, and the rifle we want to produce only requires a range of 300 to 500 meters, so its barrel
Much shorter than a bolt action rifle!”
Professor Su said "Oh" and understood.
He also knows that most of the production of a gun is spent on the production of the barrel, especially rifling.
It would certainly be easier to make if the barrel was shorter.
Then Professor Su and Su Xin ran into trouble. Although one was a university professor and the other was a rookie in the arsenal, neither of them had ever designed firearms... In fact, not just them, but no one in China could design firearms.
Designing firearms and producing firearms are two different things. For example, China can produce mid-level rifles, but they are imitations, and they are imitated with drawings.
It's another thing to really create an independent design from scratch, especially if it's a rifle that can fire continuously that has never been seen in the world before.
Wang Xuexin seemed to have seen through their thoughts.
He pretended to be thoughtful for a while, scribbling on the paper, and said: "I am also thinking about this issue during this period. I was thinking... This kind of rifle that can fire continuously should be between the rifle and the submachine gun."
Time. Then, does it combine the advantages of two kinds of guns, that is, it uses the magazine and repeating device of a submachine gun, but also has the sight and stock of a rifle..."
"The Romance of Fairy Wood"
After a while, Wang Xuexin finished the drawing. He pushed the sketch in front of the two of them and said, "It should look like this! For the barrel, I estimate that the rifled part is 369mm..."
"Wait a minute!" Professor Su interrupted Wang Xuexin with a puzzled look on his face: "Captain Wang, 369mm? This... are you accurate to the millimeter?"
Only then did Wang Xuexin realize that he had made a mistake. The number given randomly could not be accurate to millimeters.
But as long as Wang Xuexin doesn't admit it, what can Professor Su do to him?
Thinking about it, Wang Xuexin laughed and said: "Isn't it easy to remember 3, 6, 9? And the length is easy for the hand, not too long and not too short, like our bolt-action rifle with the barrel facing back.
The upper back has grown quite a bit, so it’s inevitable that you’ll stumble when you get into the jungle, but 369 doesn’t have this problem!”
Although Professor Su didn't quite believe Wang Xuexin's words, but...other than that, what else could he doubt? After all, there is no such thing in the world. Wang Xuexin was the first to draw it, and it was accurate to millimeters!
Got it from the Eagle Sauce researchers?
Impossible, Yingjiang doesn’t even own such a rifle!
Not only does it not exist in Eagle Sauce, it does not exist in the whole world...
Professor Su rolled his eyes. Even if he doubted it, he could only doubt it from two directions:
First, Wang Xuexin’s random sketch is not applicable at all, and the 369mm is not a suitable barrel length.
Second, Wang Xuexin is a genius. He can judge the most suitable barrel length for the battlefield by feeling, while others need to conduct experiments and verifications with barrels of different lengths over and over again.
If it's the latter, that is, the barrel length has been determined and sketches of other parts have been made, then it really won't take much time to produce the gun.
Su Xin stared at the sketch intently, a little unbelievable.
There is a saying that "A layman only sees the excitement, but an expert knows the rules." Su Xin is an expert in this field. As soon as she saw this sketch, she knew that this thing was not simple and could not be drawn randomly.
The reason is that although this sketch is a little crooked and irregular, it is a perspective view. Everything inside the gun, from the gas guide to the smallest bullet, is clearly drawn, and all the links are closely interlocked. The whole gun has a total of 57 parts.
Each part looks like it has been produced and then painted.
This cannot be drawn by someone who knows nothing about the production of firearms. On the contrary, it should be possible to draw it only if you know every part of the firearm and know exactly what role they play.
Su Xin looked at Wang Xuexin and secretly thought to this little Northeastern man, if he didn't go to the battlefield and switched to military industry, what else could she do?
"Comrade Battalion Commander!" Su Xin said, "It seems that you have put in a lot of effort!"
Wang Xuexin laughed aloud and replied: "Where is it, that is... just study in a little time after dinner!"
Wang Xuexin's words are meaningless. He is just trying to cover up that he directly drew the sketch of the AK47.
But when Su Xin heard these words, she became very angry...after dinner? Just using the time after dinner to study is better than myself, who spends all day in the arsenal, and much better!