The largest building in Tiangongfang is a work shed. Because it is closely guarded, it is relatively relaxed here. After all, the imperial guards cannot enter Tiangongfangfang, and they can only guard the city wall.

But if you want to enter the shed, you must go through the inspection of the Imperial City Department. This seemingly not very strict line of defense is actually the most stringent.

The imperial guards around Tiangongfang defended external enemies, while the people of the Imperial City Department were traitors defending internally. The two had division of labor and formed a three-dimensional protection. This was so strict because the firearms were important to the Song Dynasty.

After the inspection of the Imperial City Department, you can enter the shed. Zhao Zhen is naturally unobstructed. If the black boots of the Imperial City Department do not recognize the emperor's dragon face, then it will be a waste of life. Besides, with the big act of the Imperial City Department, Sancai, who dares to be arrogant?

Everyone easily entered the shed, and only at this time could they enjoy such treatment with Zhao Zhen. If it were normal, even if Zeng Gongliang came, he would not dare to be too arrogant.

Those who need to be checked must also be checked, and those who need to be searched must also be searched. At this time, the aloofness and reserve of the literati must stand aside. Otherwise, if there is a mistake, the first one who is unlucky will be Zeng Gongliang.

Zhao Zhen knew about these, so he didn't ask. He was quite at ease with Sancai and the Imperial City Office. This is why emperors of all generations liked to appoint eunuchs as their confidants. It was nothing but useful!

As soon as you enter the shed, heat waves come to you. The main task of Tiangongfang is to make the muskets of the Song Dynasty, all kinds of muskets, and the muskets used by the soldiers of the border are generally the oldest models, without rifling, without flint, just simple combs.

The significance of the existence of border troops is mostly the enemy on the border, but the current border defenses of the Song Dynasty basically do not have many border troops, most of which are regular troops stationed there, such as Black Khan, and the same is true for Tokyo Road. There is no need to send too many border troops to other places.

The border defense of the Song Dynasty could erect monuments on the ground. As long as the boundary monuments were erected, no neighboring country dared to provoke them. Otherwise, the outcome would not be possible without the Song Dynasty describing them themselves.

The neighbors in the south have basically disappeared. After Zhao Zhen destroyed the Dali Kingdom, the Song army soon arrived at Shenglong Mansion of the South Vietnamese Dynasty.

Of course, the current Shenglong Mansion is not called Shenglong Mansion, but instead it is called Henei City. The entire Nanyue Dynasty and the Siam next to it, Zhenla are all the territory of the Song Dynasty, and the local people were also included in the jurisdiction. Zhao Zhen issued an order to establish the Nanzhao Tushu Division.

Therefore, Nanzhao became the full name of the Indochina Peninsula, and all local people, regardless of their race, were classified as Nanzhao people.

Nanzhao needed to station troops, and most of the border troops in the southern part of the Song Dynasty were concentrated here. As for the islands outside the South China Sea, all the navy was responsible for the islands, so the Nanzhao chieftain had a considerable number of muskets to suppress the local area.

However, it is much better to equip the muskets of the Song Dynasty's regular imperial guards. Not only does it have straight rifle and triggers, but also flint ignition devices. However, the bullets they used remain at the level of lead bullets, with slow loading speed and low accuracy, etc., which still have disadvantages.

As for Qianyu's second year manufacturing, equipped with threaded rifles, Minnie bullets and post-loading, it has just begun mass production. Each of these muskets is a treasure of the Song Dynasty. Not to mention Zhao Zhen, even Zeng Gongliang next to him is reluctant to move it away whenever he sees it.

There is no one who doesn’t like guns when it’s a man, but before that they also like other things, knives, swords, armor, etc. Why is this? Of course it’s the nature of men!

These are all offensive weapons, which represent a certain force, and for a man, he yearns for the power that can conquer others.

Another point is that men often pursue excitement.

The gun agrees with this characteristic, which is very exciting!

Whether it is the sound of a gun or the feeling of using a gun, it is something that can stimulate oneself for men. Men prefer to pursue excitement, so men like guns.

Like other weapons, guns are armed, power, and representatives of power. As long as a man takes a suitable gun, he will always subconsciously play and aim. These actions are driven by instinct.

What is the complicated process of a delicate Ganyu building in two years?

The best steel must be continued to be melted in the shed, remove impurities and add special metals. Only in this way can a qualified barrel be made. Moreover, this barrel is not made of one layer, but two layers of steel, in order to increase the thickness and hardness of the barrel.

An iron rod is placed on the steel sheet, and the skilled blacksmith constantly knocks along the iron rod. The red steel plate is slowly rolled into a cylinder. At this time, it is quenched and cooled, and after removing impurities, it is wrapped in a layer outside according to the previous method, and finally reinforced with an iron hoop. Only in this way can a qualified barrel be created. It seems simple but is extremely complex and fine.

Top craftsmen also make up at most ten such barrels a day.

This is the beginning of the birth of a gun. Next is the manufacturing of various parts, barrel processing, wood carved gunshots and stocks, and the exquisite tail structure must be repeatedly disassembled and assembled to ensure that it will not have accidents on the battlefield. Next is the hammer design, which is similar to a firing needle, but the hammer is to make flint into a small hammer and hit the tail of the gun like a small hammer, and ignite the gunpowder in the gun chamber and fire the projectiles.

The hammer is connected by gears, and the spring blades exert force, and the force is not much or less. Once the probability of firing an empty gun is very small, the craftsmen of the Song Dynasty have made these things quite exquisite and perfect.

Everything that can be made with machines is made with machines, and the handwork can be reduced to the greatest extent possible. This seems to be not pursuing excellence, but in fact, when Zhao Zhen raised this question, the craftsmen at Tiangongfang were surprised.

Ling Jun, a master of firearms, explained patiently: "The most important thing about firearms is the rules. The thickness of the gun barrel is the better. The same is the best method. Otherwise, the size of the projectile is the same. If the barrel is in, what should we do if we can't enter? The projectile will sway in it and its power will decrease sharply!"

Zhao Zhen was slightly stunned. It was true. No wonder there were several or even dozens of rulers on the workbench in front of the craftsmen. As a later generation, he made mistakes on such simple issues, which was embarrassing.

He coughed dryly and said, "Why not drill holes directly with the whole piece of steel? In this way, as long as the rotor head is the same size, the barrel can be both rifled and exactly the same?"

Ling Jun's eyes instantly changed, with an expression of admiration but his voice was full of helplessness: "What the official said is extremely true, this is the supreme magic! But where do you want to find the drill bit?

This barrel has used the best steel in our Song Dynasty, and the drill bit is much longer than an ordinary drill. Once the force is applied, it will often break after several inches of progress. At that time, the entire barrel will be discarded and useless and have to be re-fueled………”
Chapter completed!