At this time, Sun Yuanhua asked people to take the plate armor, and Zhu Youxiao observed it carefully, only to see seven white spots and three scratches on the breastplate. He smiled and said, "This protrusion really works, great, Qianyi, how many of the Houjin and Mongols have your arm strength?" ”

Man Gui stepped forward and said, "The minister thought it should be about half of it." ”

Sun Yuanhua said: "I'm afraid that there are not so many, General Man is born with divine power, and Master Lu has said that he is not as good as sighing." ”

Zhu Youxiao nodded: "Then that means that this plate armor has no problem in terms of defending against arrows." What about the other aspects, what are the disadvantages? ”

Sun Yuanhua replied: "Your Majesty, it is indeed not easy to shoot through with an arrow, but if the enemy uses a gun, General Xiangman can pierce it, and the minister has done experiments with soldiers of the Guards, and less than one percent of the soldiers can be pierced with a gun." ”

"As for using a knife, it is generally useless, but if you use a blunt weapon, it will not be easy to do, although the helmet cuirass will not be broken, but the head and abdomen will not be able to withstand such a great force, and it will be injured or even killed."

Zhu Youxiao thought for a while and said: "I was fooled, I always thought that Jiannu was really a peerless cavalry shooter, but Master Lu said that the Jiannu they met were all dismounted and shot on foot, and they would chase after our army was defeated." As long as it can defend against the bow and arrow of the slaves. ”

Everyone didn't understand who the emperor was doing, and Man Gui stepped forward and said: "Your Majesty, Dongnuchen doesn't know, but Beiyu is really good at riding and shooting." Lu Qin and Zhou Yuji next to him both laughed.

Zhu Youxiao also smiled: "Qianyi, don't worry, there are still Mongols after Jiannu is pacified, and I am going to lay down a big country, so naturally there is a time when you can contribute." ”

Man Guihan smiled and stopped talking, he had always been angry that he couldn't go to Liaodong, so he took this opportunity to say it. The emperor understood what he meant as soon as he heard it, but Mangui had been guarding against the Mongols in the north, so it was better to stay and use it when dealing with the Mongols.

He also instructed Sun Yuanhua: "Then the plate armor will be shaped like this, first build the number of an infantry brigade, quickly transport it to the first division, and sell the replaced iron scale armor to the Mongols." Go and see what the new guns and cannons are like. ”

Bi Maokang was waiting for the emperor, and after seeing the ceremony, he took out a fire gun and handed it to Zhou Yuji: "Please General Zhou try to hit the target in front." ”

Zhou Yuji looked at the firecracker, only to see that it was slightly different from the original firecracker, mainly because the barrel was longer, he picked up the firearm and aimed it at the target in front of him and pulled the trigger, and a lead bullet hit the target.

Zhu Youxiao took the lead in applauding him, Zhou Yuji was ready to clean up and then reload, Bi Maokang handed over another firecracker, Zhou Yuji took it and continued to pull the trigger, a total of ten shots, seven of which hit the target.

Zhu Youxiao said with a smile: "That's right, the originally inaccurate fire gun can actually make you hit seventy percent, and your skills have greatly improved." ”

Zhou Yuji waved his hand and said: "Your Majesty, this should be a problem with the gun, not a technical problem with the minister." ”

Bi Maokang also stepped forward and said with a smile: "Your Majesty, this is a kind of firearm newly developed by us, which has some lines engraved in the barrel, which can make the lead bullet spray out of the muzzle along the line, which increases the accuracy." ”

Zhu Youxiao took a firecrackle and looked at it from the mouth, and sure enough, there were several straight lines inside. It turned out to be a rifled gun, how did I forget about it, the rifled gun is more accurate than the smoothbore gun, and the firing range is longer, I thought about it when developing the flintlock gun, but because the guns at that time were all made by hand, I was worried that rifling would greatly slow down the speed, so I didn't say it. And then when there was a machine to drill the barrel, it was forgotten.

He decided to make amends, so he spoke: "The thread inside this firearm can be changed to a spiral shape, and then the bullet can be changed to a long strip, which will make the bullet more stable." As he spoke, he picked up a twig and drew a bullet on the ground.

Bi Maokang looked at what the emperor had drawn, thought for a while and said, "It will be very troublesome to load in this way, long bullets are not as easy to load as ball bullets, and it will affect the speed of shooting." ”

Zhu Youxiao smiled and picked up the branch, pointed to the back of the bullet and said: "Make a hole here, add a wooden plug inside, and when the gunpowder burns, the wooden plug will make the back swell, so the bullet can be thinner than the gun, so that it will be easy to reload."

Bi Maokang thought for a while, then knelt down and said: "The emperor is really born smart, and the ministers will obey him." “

Zhu Youxiao helped him up and said: "Let you take the apprentices, not only to be your assistants, but also to put forward some of your own ideas, and then everyone to discuss together, the collision of ideas can produce brilliant sparks." I heard a sentence that made sense: make bold assumptions and be careful to verify. I encourage you all. “

Sun Yuanhua, Bi Maokang, Mao Yuanyi and others carefully savored the emperor's sentence, and the more they thought about it, the more they felt that it made sense, especially Sun Yuanhua, who had created some objects that he had never dared to think of before under the guidance of Zhu Youxiao many times, and he had a deep understanding of this sentence.

Zhu Youxiao said: "Just follow the idea I just said, you try it first, find the reason after failure, and report to me immediately after success." If my Ming army is equipped with this kind of weapon, then Jiannu is just a chicken, a dog. “

Everyone nodded yes, and then everyone came to the place where the cannon was made. Mao Yuanyi has already built a twenty-kilogram cannon, and the cannon body weighs more than 1,000 kilograms. Mao Yuanyi said: "Your Majesty, this kind of cannon can only be used on the city wall, and it will be troublesome when it is transported and installed, do we only build this kind of cannon at most?" “

Zhu Youxiao shook his head and said: "No, continue to build bigger, I want to be as big as possible, this cannon can not only be used to defend the city, but also can be used in naval battles." Now there are two problems for you to study, one is how to reduce the return force, such a large return force on the ship, then you don't need the enemy to fight, you may capsize. The second is the study of artillery shells, in addition to solid shells and chain shells, you can also try to fill the shells with gunpowder, and wait for the shells to hit the ground before exploding. This should pay special attention to safety, don't be in the Weapons Bureau when doing experiments, Sun Qing, build a test site on the side of the mountain, and live firing will be in that in the future, safety is the most important. “

Sun Yuanhua said: "Your Majesty, there is a large open space on the side of the mountain ten miles away, and there are no residents around, which can be used as a shooting range. “

Zhu Youxiao nodded, and then said to Wei Zhongxian: "Dongchang must do a good job of anti-espionage, and there must be no mistakes." “

Wei Zhongxian knelt down and said, "The slave and maid receive the order, the saint does not allow it, and not a single bird will let him in." “

Zhu Youxiao smiled: "The factory ministers are doing things, and I have always been at ease." “

Wei Zhongxian wept and said: "The slave is willing to go to the soup for the saint and die without giving up." “

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