It was late at night, but Li Zhang hadn't slept yet, but carefully checked the drawing he had drawn under the candle, and he picked up the pen next to him from time to time to make corrections in some unreasonable places, and next to the drawing, there was a shotgun that had been disassembled into parts.

The iron technology of the Song Dynasty has been quite superb, and even mass production of steel, the annual steel output of the Great Song Dynasty is said to have reached an astonishing 150,000 tons, and seven hundred years later, the United Kingdom, which just started the industrial revolution, the steel output is only more than 70,000 tons, and it is not even half of the steel output of the Great Song Dynasty, which shows the development of the iron smelting industry in the Song Dynasty, of course, when Britain completed the industrial revolution, the steel output jumped to several million tons, after all, the power of industry is infinite.

Li Zhang has also seen a lot of iron weapons in ordinary times, such as Lu Wu's weapons, the steel mouth is excellent, although it is not as good as the cold weapons he found on the plane, but it is also quite good, and there are some other iron tools that are also well-made, so Li Zhang wants to try to see if he can make a musket in the Great Song Dynasty.

Of course, although Li Zhang doesn't know much about guns, he also knows that if he wants to make guns, the most difficult part of the technology is not in the gun itself, but in the bullet, a small bullet not only includes a variety of metal processes, but also primer, gunpowder, etc., which involves a complex chemical industry, Li Zhang asked himself that he would definitely not be able to get it, so he can only make the most primitive arquebus, or a flintlock pistol.

However, for arquebuses or flintlock pistols, Li Zhang has not seen the real thing, but has only seen pictures in some history books, of course, he also knows that their principle is very simple, but he does not know much about the structure inside, so he took the shotgun found on the plane apart, and it is definitely not possible to copy it, but it is no problem to make a reference, after all, the principle of the gun has not changed much since the time of its invention, and the structure is also similar, nothing more than a firing device in the back and a barrel in the front.

Of course, the principle of the gun is simple, but it is not easy to design a qualified gun, fortunately, the arquebus and flintlock pistol are relatively primitive, Li Zhang has a shotgun as a reference, and the design is also very smooth.

Originally, according to the development of firearms, the first appearance should be the arquebus, until a few hundred years later, it was over to the flintlock pistol, because the arquebus has too many shortcomings, not only need to ignite the arquebus in advance, but also afraid of wind and rain, shooting is also very troublesome, and the flintlock pistol does not have this shortcoming, the structure of the two is actually similar, but the idea of igniting gunpowder is different.

It is also taking into account the shortcomings of the arquebus, so Li Zhang directly from the flintlock pistol idea to start the design, the so-called flintlock pistol, in fact, is to change the arquebus to flint, with the flint impact to produce sparks to ignite the gunpowder, not only greatly simplified the process of shooting, but also does not need to use the fisket, in rainy and windy weather can still shoot, so after the appearance of the flintlock pistol, it quickly replaced the arquebus, until the emergence of the rear loading gun, the flintlock pistol completely withdrew from the stage of history.

Li Zhang has been revising until midnight, then he fell asleep on the bed with satisfaction, and woke up the next day to continue to revise, some key places were changed by him countless times, until he felt satisfied, and he also thought about finding some information from the computer, but unfortunately there was no information at all, there was some information on smelting steel, but the manufacture of guns was not used by ordinary people.

After a few days of revision, a flintlock pistol designed by Li Zhang finally appeared on the drawings, and the discarded paper used for modification alone was palm thick, and for these drawings, Li Zhang also burned all of them, so as not to be obtained by someone with a heart, and then he took the drawings to Judge Liu, who was in charge of the blacksmith.

"Freshly steamed meat buns!" Li Zhang found Judge Liu who was urging the craftsman to work, and then stuffed the basket in his hand into his hand and said, during this time he also often brought some food to Judge Liu, speaking of which, this Judge Liu also came here alone, and there was no one to take care of him, and he usually ate a big pot of rice like a craftsman, and smoked in the blacksmith shop all day long, and the whole person was also black and thin, looking no different from a craftsman.

"Alas, thank you so much Brother Li, I just haven't eaten yet." Judge Liu was not polite to Li Zhang, took the basket and took out two buns at the moment, and handed the rest to the craftsman next to him, but the nearby craftsmen swarmed up and were snatched up in the blink of an eye, and they couldn't grab anything farther.

Li Zhang has long been surprised by this situation, Judge Liu is not from the imperial examination, but a very rare official to turn officials, and he even worked as a blacksmith before, because of his outstanding performance, he was slowly promoted to judge.

Judge Liu is different from Lu Wu's judge, there is a salt and iron division under the three divisions, and the salt and iron division has seven cases, and the chief of each case is a judge, and Judge Liu is one of the seven cases of the iron case judge, in charge of gold, silver, copper, iron, cinnabar, charcoal, tin, drum casting and other affairs, originally he sent a hook officer under him to be responsible for the affairs of the imperial tomb, but he didn't expect this hook officer to be involved in Lei Yungong's corruption case, and now he is still locked up in the prison of Kaifeng Mansion, he can't draw out other people for a while, so he has no choice but to go into battle in person.

"Brother Liu, how is the construction of the ironware going, is there still a rush on the imperial tomb?" Li Zhang looked around for a moment, and then asked with a smile, when Judge Liu first came some time ago, the Imperial Mausoleum sent people to urge him every day, and the angry Judge Liu was about to curse, but in the past two days, he obviously felt that his temper was much better.

"I worked overtime some time ago, and I finally finished the work of the Ministry of Works, and I was finally able to take a breath in the past two days." Judge Liu replied while nibbling on the bun, he was born at the bottom, and he spoke and acted with a reckless spirit, which was one of the reasons why he dared to quarrel with a general like Hu Yan Shouxin before.

"That's great, I have a gadget here, I want to ask Brother Liu to help me take a look, I wonder if Brother Liu has time?" Li Zhang asked again with a smile at this time.

"Oh, what's that?" Judge Liu couldn't help but ask in surprise when he heard this.

Li Zhang took out the drawings at the moment, and then handed them to Judge Liu and said, "This thing needs to be built by a blacksmith, but I don't know if our blacksmiths in the Great Song Dynasty can make it?" ”

Judge Liu also took the drawings at this time and looked at them, on them was a split drawing of the flintlock pistol, and every part in it was clearly drawn, and even the size and materials were marked, which made him look at Li Zhang in surprise, probably because he didn't expect the young Li Zhang to draw such detailed drawings, this drawing was even more detailed than the drawings he had seen in the case.

"This ...... It can't be a firearm, right? Judge Liu looked at the drawings for a long time, and finally stroked his beard and asked Li Zhang.

"Brother Liu, you have such a good eye, you can see that this is a firearm?" Li Zhang couldn't help but look at Judge Liu in surprise when he heard this, because the drawings of this flintlock pistol only have a structural drawing, but it does not indicate its function, and even the assault musket has not appeared in this period of the Great Song Dynasty, and the use of firearms is not extensive, and ordinary people are afraid that they will rarely associate the things on the drawings with firearms.

"Hehe, don't hide it from Brother Li, we have seven cases in the Salt and Iron Division, among which there are cases, mainly for the famous objects of making weapons, and the weapons workshop, the affairs of the bow and crossbow courtyard, etc., I have also done it for a period of time in the case before, and one of my workshops is responsible for making firearms, so I am no stranger to firearms, and there is a place for pouring gunpowder on your firearm, and the tube in front of it is similar to the bamboo tube of the rocket, so I thought of firearms." Judge Liu replied with a smile at this time.

During this period, the Great Song Dynasty began to use firearms to defend the city, such as the poison smoke ball recorded in the "Wujing General Essentials", which is actually a special cannonball, which is not only poisonous, but also explodes after landing, but this cannonball is fired with a device similar to a catapult, not the artillery of later generations, and the rocket mentioned by Judge Liu is actually an arrow driven by gunpowder.

"I see, no wonder Brother Liu could think that it was a firearm, but I wonder if the blacksmiths can make this thing?" Li Zhang asked again at this time, although the structure of the flintlock pistol is simple, but some places are still very demanding, such as the spring needs to use elastic steel sheets, although the Great Song Dynasty can produce steel, but he does not know whether this kind of steel can be produced.

I saw that Judge Liu carefully looked at the drawings again at this time, and then touched the short beard below and said: "There are a few places that are indeed a little complicated, but they are not particularly difficult, if Brother Li can trust me, it is better to leave the drawings with me, I will help you consult, and then send a few craftsmen to give it a try." ”

"That's great!" Li Zhang immediately slapped his thigh and said, but then he said with some worry, "This won't delay Brother Liu's business, right?" ”

"It's okay, there shouldn't be much work these days, and I'm also quite interested in firearms, I won't tell you, there are also people studying firearms over there, but it's a pity that there is not much progress, if you succeed in this firearm, maybe I can get some credit." Judge Liu smiled again at the moment.

But having said that, Judge Liu actually didn't have much hope for this firearm, because in his opinion, the young Li Zhang made this thing out of fun at most, and it was far from being compared with those gunpowder craftsmen in the ordnance workshop.

Li Zhang also vaguely saw Judge Liu's thoughts, but in any case, as long as the other party agreed, so he immediately thanked the other party, and then explained some key points that need to be paid attention to in the manufacture of muskets, as for the matter of secrecy Li Zhang is not worried, because he still has a killer weapon that has not been taken out, that is, gunpowder, although gunpowder weapons have appeared in the Great Song Dynasty, but the ratio of gunpowder is messy, if it is not improved, even if it is useless to make a musket.

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