"The minister believes that this time the envoys of the six countries came to Da Qin, it is already obvious that they came from the weapons of Da Qin." Li Sixian stabilized King Qin's question.

"For these weapons, Da Qin is my weapon in sweeping the Six Nations. Such a weapon should be kept hidden to a certain extent. When Da Qin Dong left Hangu Pass, it was the time when I was shocked by the Six Nations. Taking advantage of the fact that the Six Nations could not adapt. When the time comes, you can quickly dominate the world." Li Si said.

"En." King Qin nodded.

"Aiqing and Widow have the same views." King Qin said. Li Si was very happy to hear that, at least King Qin and his own thoughts can be consistent, indicating that he can still maintain his status as the prime minister of Qin.

"However, the widow in the city of Zhao Guoyun once showed me Daqin's new firearms to Li Mu. How does Aiqing look at it?" King Qin then raised a thorny question.

"This..." Li Si did not expect to have such a problem. But it has happened now. I don't know why King Qin wanted to show it to Li Mu at that time. The combat power of Li Mu's frontier army is comparable to that of Qin army. Now it has been shown to Zhao Jun. According to the habits of Zhao Jun and Li Mu, he would definitely make preparations. Moreover, the arsenal has been shut down and cannot produce large quantities of firearms. Li Si was really at a loss when faced with such a problem.

"The minister is ignorant," Li Si said on his knees.

"Get up. This matter cannot be solved by a prime minister." King Qin said.

"I have invited Wei Liao, Feng Quji, and Qin Shangwen. Let's sit down and discuss it." King Qin said comfortingly.

Wei Liao and Feng Qu hurried in.

"Meet the king." The two saluted.

"Get up all. Everyone sits down and discusses the affairs of the envoys of the Six Nations." King Qin waved his hand.

King Qin saw that there was no presence of Shang Wen, and knew that this person was busy, so he probably waited a while before he could come.

Shang Wen is now further improving the guns and artillery. The first musket is still undergoing durability tests. The results are coming out soon. The barrel of the gun is hot. It is estimated that it will never take long to see the results. As for the artillery. Shangwen decided to cast another one. The caliber of this artillery was increased to two inches. The length remains unchanged for now. According to the original plan, Shangwen planned to install the gun mount after the artillery was cast. There should be an aiming system on the gun mount. This requires the aiming pin to be cast when the artillery is casting. Install the ruler at the back. After being installed on the turret, the height can be adjusted. This requires the coordination and fixation of the gears with each other. The gun carriage should be equipped with wheels. There must be something to be fixed. But for the recoil after the artillery is fired. This problem cannot be solved temporarily.

Now the recoil of the artillery is eliminated by hydraulic pressure. In the current situation, it is obviously impossible. The tightness cannot meet that requirement. Shangwen will do just that. Shangwen tried to add rifling to the artillery, or to improve the shape of the artillery shell. Shangwen started talking with the caster about the shape of the shell. After the foundry heard. Let Shangwen make a model to see. Shang Wen used a wooden stick to draw the streamlined shape of a modern artillery shell on the ground. The caliber is slightly smaller than the caliber of the artillery, but not too much worse. This is mainly to maintain a certain degree of airtightness of the artillery. At the same time, it is more convenient to install. The foundry expressed his understanding. You can try it. Shang Wen nodded.

Shang Wen was about to improve the casting process. Feeling someone behind him, he turned his head to see that it was Zhao Gao.

"Mr. Qin, I finally found you. Let's go. King Qin is anxious to summon you." Zhao Gao said anxiously.

Shangwen hadn't asked Zhao Gao what was going on, and Zhao Gao had already finished speaking in one breath.

"Oh, all right. Wait for me, I'll explain the matter again. I'll come right away." Shang Wen left after speaking. Shang Wen went to the foundry and told him, "Can I use iron abrasive tools for casting? Then the mold will not be destroyed when the casting is completed. When pouring, the inside of the iron mold just needs to be smeared with clay. "Shangwen originally wanted to talk about coal ash, but thought that the foundry hadn't seen coal yet, so he changed his words to something else.

The casting division nodded, Zhao Gao urged in a hurry. Shang Wen had to follow Zhao Gao.

Waited for the carriage. Zhao Gao drove away. Only then did Shang Wen notice that his clothes were already dirty and not decent. It would be disrespectful to see King Qin in this way. I want to tell Zhao Gao. But something seems to be very anxious. Shang Wen had no choice but to stop talking. I believe King Qin will not blame it.

Waited for the Qin Palace. Shang Wen followed Zhao Gao to a palace. As soon as Shangwen entered the palace, he saw three people. They are all civil servants. King Qin sat on the side as if discussing something.

"Farewell to the king." Shang Wen saluted.

"How do you dress up like this, sir?" King Qin obviously noticed Shang Wen's clothes.

"Mister, get up soon." Qin Wang realized that Shang Wen was still saluting, which was not good.

Shang Wen got up. Said: "The minister is casting muskets and artillery."

"Oh. So, Da Qin licked a new weapon again." King Qin said happily.

"Yes, in terms of range..." Shangwen was going to elaborate on the specific situation. King Qin asked before Shang Wen said.

"Sir, did you bring it." Qin Wang asked.

"This, not yet. The improved model is in the process of casting. However, Her Royal Highness has already seen it." Shang Wen said.

"Oh. Sir, sit down and talk first." Qin Wang waved his hand.

"Xie Wang," Shang Wen sat down. It looks like three people. Wei Liao's expression wanted to find out. Feng Quji was the same, but more surprised. Li Si sat blankly like an old monk entering meditation.

"Sir, let's talk about it first" Qin Wang said.

"There are two types of firearms, musket and smoothbore. The range of muskets is not as good as that of bows and arrows. But they are more expensive. At a distance of forty steps, they can penetrate all armor. The power of artillery is about 500 steps. The power is more powerful than long-range shots. The bow and crossbow need to be large. The loading time is comparable for the time being. But the cost is huge. The minister has ordered people to improve the muskets and artillery. It is estimated that it will not take long to see the real objects." Shang Wen said.

"En." King Qin nodded.

"Sir, take a look at this first." King Qin said and handed Shang Wen a memorial. Shang Wen took it with both hands and opened it. From the few words he could recognize, Shangwen probably understood it. This is when the Six Nations heard that the Qin Army went north to fight. Sent to congratulate the envoy. But in the memorial, the word military commander appeared repeatedly. Shang Wen didn't understand what this meant. Shang Wen didn't understand the mystery in this for a while. In short, this matter is not simple.