In fact, regarding firearms, Liu Hongjian also knows a technology that has a greater effect on the Ming Dynasty, that is, rifled guns.

The role of rifling is to give the warhead the ability to rotate, so that the warhead can still maintain the established direction after being discharged, which can not only greatly increase the range of the bullet, but also increase the accuracy.

It can be said that rifling is the soul of the barrel.

If memory serves, the use of rifling was recorded in as far away as the West in the 15th century, but it was not widely used until the 19th century.

The reason for this is that the loading speed of the front-loading rifled gun is too slow, because the projectile must be embedded in the rifling to rotate with the rifling, the soldier often needs to hit the feeding stick with a hammer to load the projectile into the rifling.

As a result, the rate of fire was reduced to a third or even slower than that of a smoothbore gun, and such a low rate of fire was intolerable for the army.

In addition, the production of rifling requires extremely high skills, and the slightest deviation will be scrapped, and mass production cannot be realized, which is why Liu Hongjian knew such advanced technology and did not tell Fan Jingwen.

Advanced science and technology need to match a strong industrial base, not to mention the current Ming Dynasty, not to mention industry, the spark of capitalism that has just sprouted will be extinguished by the Manchu Qing Dynasty, and we still have to wait.

According to Liu Hongji's conjecture, he will definitely open a factory in the future, the military factory is used to dry the frame, the civilian factory is used to make money, and an imperial earl is hung up, waking up to the power of the world, drunk and lying on the knees of beauties, counting banknotes during the day, what is that at night?

Isn't it beautiful?

In the next seven days, except for going home a few times to check on his little wife's injuries, Liu Hongjian stayed in the barracks with this group of teenagers.

Because of Chongzhen, the big guy, Liu Hong gradually improved the food treatment of the teenagers without authorization, most of these recruits from the Qianhu Institute are fourteen or fifteen years old, and they are still growing up, Liu Hong gradually does not want his team to be stunted.

So in addition to being full, a new meat dish was added every day, which was simply unimaginable in the barracks.

You must know all kinds of natural and man-made disasters in the late Ming Dynasty, not to mention meat, many families can't even eat rice bran, and the teenagers who haven't touched meat for several years are simply overjoyed.

Of course, meat is not eaten for nothing, in addition to the regular chopping training, Liu Hongjian not only increased cross-country running, weight-bearing running, but also introduced push-ups, sit-ups, and even single parallel bars that are more conducive to the development of muscle groups.

In the afternoon, a few old gentlemen who shook their heads were invited, and Liu Hongji's father Liu Delong was idle at home and wanted to join in the fun, and by the way, he wanted to pay his son in the province.

But he still persuaded Liu Hong gradually, not to mention that the emperor paid for the salary, he didn't want his father to see what he did in the barracks every day.

Not to mention eating and living with a group of teenagers, and running with a big piece of wood, how can there be an imperial earl.

Seeing that his father was really idle, Liu Honggradually simply walked out the back door and went to the ministry, and let Zheng Sanjun, the old secretary of the ministry, find an errand.

Zheng Sanjun was originally an extremely stubborn old man, and he was very unhappy with this style of going through the back door openly, but in the end, he couldn't twist his face and became thicker, and Liu Hong, who was developing towards the third realm, gradually made a lot of trouble.

Got the errand of the household department, and the promotion was subordinate to the household treasure banknote lifting division, and the Ming Dynasty set up this yamen from Taizu Zhu Chongba, which was specifically responsible for printing and distributing banknotes.

The errand of printing banknotes, cattle criticism, but think too much, the Ming Dynasty printed paper money, not to the Ming Dynasty's economic situation as a reference, nor to the gold and silver reserves as the basis, the amount of paper money printed, basically depends on the mood, with fate!

It led to serious inflation in paper money, so serious that to buy a stone of rice to find a cart, pull a whole car of banknotes, and later a whole car of banknotes will not work, everyone is not stupid, simply do not use.

As a result, the Household Treasure Money Lifting Division has become the most idle yamen in the Household Department.

The official position is not high, and he is eight grades, but he has made Liu Laoxiu happy, Lao Xiucai is in his sixties, and he has been an accountant for half his life, and he has already broken off the idea of fame, and now he has suddenly become an official official of the Ming Dynasty.

Glory to the ancestors! So Lao Xiucai never mentioned the matter of teaching in the military camp again.

The newly recruited teachers are all old-fashioned old talents, and the content of the teaching is also lackluster, what is 'the original nature of human beings is good', or 'heaven and earth Xuanhuang universe desolation'.

As soon as he listened to it for a while, he was stopped by Liu Hong, not to mention that they are all teenagers, and they are not suitable for learning the enlightenment education of these kindergartens, he doesn't want these young teenagers to become dull nerds in the end.

So Liu Hong gradually directly asked a few old men to only teach literacy, and then mixed some universities and moderation, although there is a lot of dross in it, but at least it contains some principles of life.

As for what to study in the future, Liu Hongjian also has his own ideas, his predecessor was a bachelor's degree, and he is a veritable bachelor's degree, so it shouldn't be a problem to compile a textbook for primary school students.

Arabic numerals are so simple and easy to understand, how many times easier than what one two or three do not know, and then mixed with some mathematical operations, the expansion of basic geographical knowledge, what is known astronomy and geography, what is called out of the phase?

After seven days of training, Liu Hongjian also had a preliminary understanding of the respective strengths of these young men, and the strong and powerful ones were selected as shield soldiers, the tall ones were pikemen, and the good-eyed and clever ones were selected as AKM shooters.

When fighting, the shield soldier is in front, holding a shield in his left hand and a knife in his right hand, in addition to protecting the shooter behind him, he also has a certain ability to counterattack.

In an uninhabited room, Liu Hong gradually moved out his inventory, a hundred AKMs, and three boxes of bullets from the treasure ring.

Originally, he had one hundred and twenty, but one was deducted by Chongzhen, and the bull mallet had been carrying one, and the remaining eighteen had to be kept for backup.

There are a lot of bullets, and the ring space is large, except for these 100 guns, the rest are all bullets, and it is roughly estimated that even if all these 100 guns are scrapped, they will not be used up.

Having known that he had thrown a few boxes of bullets and stuffed them with more practical things, Liu Hongjian not only regretted his mistake at that time.

Liu Hong gradually greeted, and immediately a team of teenagers came over, and saw that the strange firearms on the ground became novel.

When everything was carried outside, since he and Niu Zhuang were the only ones who knew how to use AKM, Liu Hong gradually had to divide into two groups, each group of 20 people, just like the original professors Niu Zhuang and Cao Wentai to guide them one by one.

It took a long time for every young man to have a basic understanding of firearms, and although not everyone had the opportunity to be a shooter in battle, at least everyone should be able to use it.

There are two iron laws for shooters, one of them is in the gun, if the person runs back in the battle, the gun is lost, and he will be directly removed from the thousand households and re-enter the military household.

Second, never point a gun at your robe, a sword and gun without eyes.

In the past seven days, the Thousand Households of Long Live Mountain have gone from nothing to being in order, from chaos to order, and people with experience in the whole army, such as Chang Yu and Zu Qiuqing, have made great contributions.

Liu Hongjian also saw the hardships of forming an army, from a wasteland, to the establishment of a camp, asking people from the Ministry of Engineering to build houses, inviting military doctors, consulting teachers, and formulating various systems.

On this morning, Liu Hongjian was instructing the soldiers of the Thousand Households, and a team of eunuchs suddenly came to the gate of the barracks, led by Wang Erxi, the eunuch of Suitang, who shouted as soon as he entered the barracks.

"Where is An Guobo?"

Liu Hong gradually didn't understand why, so he hurriedly threw down the work in his hand and walked over.

"Uncle An, the emperor has summoned you on an urgent matter, come with our family to the palace!"