The development of firearms is not so smooth, Zheng Xunrui has advanced concepts, he put forward the fine division of labor, the production of firearms is divided into multiple steps, each step is responsible for the manufacture of a certain kind of parts, this idea has played a huge role, but also let the pass rate of parts close to ten percent, after all, the pass rate of parts and personal income is directly linked, skilled craftsmen, there is no room for survival here, not only can not earn silver, but also encounter the rejection of others.

But when it comes to technical matters, it is not as simple as words, Zheng Xunrui's advanced concepts in his mind, such as the concept of magazines, in the eyes of Bi Maokang and Tang Ruowang and others, are too novel, these concepts Bi Maokang and others need time to accept, but also need many tests to verify, although everyone is conscientious, dedicated to the development of firearms and artillery, but if you want to really show results, it takes hundreds of tests.

Zheng Xunrui regretted it very much, he had known the current situation, how good it would be to study more military knowledge before crossing, muzzle velocity, ballistics and range, etc., his mind was almost blank, and it was impossible to grasp them to study this matter before crossing, unless they had some other ideas.

Most of the time, Zheng Xunrui is in the Firearms Bureau.

With a steady stream of silver, the technology of installing a bayonet in front of the flintlock pistol has made a substantial breakthrough, and a major breakthrough has been made in the problem of the flintlock trigger, in improving the difficulty of the flintlock trigger, Zheng Xunrui put forward the concept of pulley, that is, in the firearm into the precision gear, through the rotation of the gear, so that the firing pin hits the flint to ignite, reduce the force of pulling the trigger, this suggestion, for Bi Maokang is the initiation, it only took about ten days, Bi Maokang guided Bo Yu in practical experiments again and again, and improved the flintlock pistol again. The force of pulling the trigger is half as small.

However, Zheng Xunrui will never be completely satisfied with such an improvement, and he pays the most attention to the problem of loading bullets, whether it is a flintlock pistol or a firecracker. Bullets need to be poured into the muzzle, first pour gunpowder, and then put in bullets, the amount of gunpowder is difficult to guarantee, resulting in different firing effects. And every time you fill a bullet, you need to tamp the bullet with a strip before it can be fired, which is very time-consuming, and even the most skilled shooter can guarantee four shots per minute, which is very good.

Steel has not yet been available and cannot be refined, which indicates that the production of modern bullets will encounter great challenges, but this is the most critical issue for the Firearms Bureau. No matter how great the difficulties may be, a substantial breakthrough must be made, and once a way to load bullets from the middle or bottom of the chamber can be developed, then firearms will enter a new era.

Zheng Xunrui understands the truth, and he is not in a hurry.

Most of the time he stayed in the Firearms Bureau, together with Bi Maokang, Tang Ruowang and others, Zheng Xunrui's purpose was to instill advanced concepts into the public, so that everyone could think and study along the ideas provided by himself, and it was impossible for him to personally study these academic studies. It's not something he has to worry about, he has a specialization in the art industry, he is not an expert after all, at most he is a pseudo-expert.

But Bi Maokang and others don't see it that way.

Zheng Xunrui's novel ideas. It has an extraordinary impact on everyone, Bi Maokang's feeling and shock is the greatest, after all, he is an expert in the development of firearms, and he has studied this matter for many years, and what he has thought about for so many years is often not as good as Zheng Xunrui's casual reminder of the matters that need to be paid attention to. This made Bi Maokang ashamed, and he respected Zheng Xunrui more and more, although in terms of age, he could be Zheng Xunrui's father.

Zheng Xunrui put forward a lot of ideas, which need to be slowly tested and studied, by this time, it is impossible for Bi Maokang to leave the Firearms Bureau, and Zheng Xunrui promised that once the new type of firearms is developed, Bi Maokang will be allowed to publish a book and record all the production processes, which is a famous thing for Bi Maokang.

Most of the things in Cao Yun are Xu Wanghua's worries, the Cao Yun that began in early March has been very smooth, and the collection of Cao grain by local governments is even smoother, these aspects are Xu Wanghua, Wen Kun, Shi Kefa, Ma Shiying and Su Jiancheng and others are worried, Zheng Xunrui can let go, Shaanxi, Fuzhou and Penglai and other places have already transported a large amount of grain, these places are very stable, so Zheng Xunrui can temporarily put his main energy on the Firearms Bureau.

What makes Zheng Xunrui happiest is the growing strength of Hongmen, which has the hard work of Xu Wanghua, Xu Jikuang and Hong Mingcheng, especially Xu Jikuang's performance is very good, which makes Zheng Xunrui impressed.

Xu Jikuang is a student of Huang Daozhou, it should be said that the knowledge is good, and Xu Jikuang is very different from other readers, Xu Jikuang is not a dogmatic reader, and it is impossible to be rigid, as the leader of the Shanyin Gang, Xu Jikuang must have encountered a lot of specific matters, many things need to be dealt with brains, and need to be flexible, which makes Xu Jikuang have a deep feeling of real life, know how to face reality, how to deal with thorny problems.

Talents like Xu Jikuang are the real so-called talents who are both civil and military.

But whether Xu Jikuang is really returning to his heart, Zheng Xunrui is not very clear about it, you must know that if Xu Jikuang has different intentions, the more he is reused, the more severe Zheng Xunrui will suffer.

At this time, Nanjing's dark line sent information that Xu Fojia, the shopkeeper of the Shengze Guijia Courtyard of Qinhuai River, was imprisoned in the county government prison of Shangyuan County, accused of fornicating with the rogues, and secretly funding the rogue rebellion.

When Zheng Xunrui saw the information, his face turned blue with anger.

He has unusual feelings for Xu Fojia, such feelings that others can't understand at all, it is a heart-to-heart feeling, and Xu Fojia can understand his inner emotions.

To say that Xu Fo's family is illicit with the rogues, it is pure nonsense, Zheng Xunrui doesn't know how many rogues have been exterminated, even Li Zicheng and Zhang Xianzhong and others, if it were not for a special accident, I am afraid they would have been buried in his hands, Li Zicheng and Zhang Xianzhong There are indeed many women around them, but unfortunately there are no women in the south at all.

After receiving the information, Zheng Xunrui quickly made a decision to go to Nanjing to solve the matter in person.

Just when Zheng Xunrui asked for more detailed information from Nanjing, Yang Tingshu's letter arrived.

After reading Yang Tingshu's letter, Zheng Xunrui thought alone for a long time.

Yang Tingshu explained the whole thing very clearly, and there was prediction and analysis in it, which allowed Zheng Xunrui to grasp the ins and outs of the whole thing, and he could make an analysis according to the origin of the matter.

When Xu Jikuang entered the Donglin Book House, his face was a little pale.

The arrogant Xu Jikuang was completely convinced by Zheng Xunrui, what he saw and heard in the Governor's Mansion and Hongmen surprised him, the officials around Zheng Xunrui were all extremely capable, doing things neatly and neatly, never dragging mud and water, and everyone dared and was willing to take responsibility, which made Xu Jikuang have to admire Zheng Xunrui's power.

The lives of the people in Huaibei have quietly changed, the government has checked the living conditions of the people several times, it is the time when the green and yellow are not connected, in the past, there will be a large number of beggars and people who have left their hometowns in Huaibei, but this year there are very few appearances, almost nothing can be seen, the government has given relief, and at the same time requires the people to concentrate on farming, and strive for a bumper harvest in the autumn.

The strength of the Zheng family army made Xu Jikuang dumbfounded, he used to be the leader of the Shanyin Gang, and he was very clear about the combat effectiveness of the Wei Cao soldiers, and he also looked down on him, Zheng Jiajun went to Lushun, defeated the Houjin Tartars, and recovered Lushun and Fuzhou and other places, since then, Xu Jikuang has paid attention to the Zheng family army that stayed in Huai'an.

Perhaps it was good luck that Xu Jikuang followed Xu Wanghua into the Zheng Jiajun military camp several times, and occasionally saw the training of the Zheng Jiajun soldiers, looking at the cold eyes, clean movements, and murderous aura bursting out of the Zheng Jiajun soldiers during training, Xu Jikuang's body trembled slightly.

Since then, Xu Jikuang has regarded Zheng Xunrui as a saint, a true saint.

After being summoned by Zheng Xunrui, Xu Jikuang was so excited that it was difficult to control his emotions.

"Xu Jikuang, this is a letter sent by Lord Yang of Nanjing's household department, you can take a look, help analyze it, what is the reason for this, you have lived in Nanzhili for a long time, and you are a student of Mr. Huang, you must be able to analyze the inside story."

Xu Jikuang was not polite, after taking the letter, he looked carefully, he read very slowly, and his mind was thinking quickly.

Xu Jikuang understands that this is Zheng Xunrui researching himself, and if he passes the examination, he will definitely be reused.

After his mind sank into the letter, Xu Jikuang's face slowly became serious.

After half an hour, Xu Jikuang raised his head and spoke.

"My lord, the first feeling of my subordinates is that this is a trap, although it is the shopkeeper Xu who is imprisoned, but the shopkeeper Xu is by no means the object of their calculations, but thinking about bringing down other people through the Xu showcase, fornicating and funding the rogue, this is not an ordinary crime, no matter who is implicated, it is difficult to justify."

Zheng Xunrui nodded slightly and slowly spoke.

"If someone wants to calculate me through Shopkeeper Xu, what do you think?"

Xu Jikuang's face was full of surprise, and he shook his head unconsciously.

"This is impossible, thinking about calculating the adults through the shopkeeper Xu, it is absolutely impossible to do, and it is impossible, no one will believe it."

As Xu Jikuang spoke, the color on his face changed again, as if he had thought of something.

Zheng Xunrui looked at Xu Jikuang and didn't speak, at this time, he didn't need to speak, if Xu Jikuang was willing to speak, he would naturally say it. (To be continued.) )