In Shuntian Prefecture, Chang Yao is working. He is going to summarize the latest information and report it.

Chang Yao's handwriting is good, at least a lot better.

"Master, master!"

He was checking the materials, but someone was whispering outside the door. Chang Yao frowned and said, "come in."

The man who came was Chang Yao's man. As soon as he came in, he ignored Chang Yao's black face and hurriedly said, "Sir, I found them!"

Chang Yao said in amazement, "who did you find?"

"It's Li Er and them."

"Pa!"

Chang Yao's brush fell on the table. He asked eagerly, "where are they now? Why have they been missing these days?"

The visitor said dejectedly, "Sir, I only found Li Er's clothes and a few bones. If it weren't for the dog tooth necklace on Li Er's neck, I wouldn't recognize it at all."

Chang Yao took a deep breath and asked with toothache, "is there any sign of fighting on the scene?"

"Nothing. Sir, the night Li Er disappeared, it happened that there was a heavy rain in Beiping mansion. Even if there were any traces, they couldn't get under the rain."

"Bang!"

Chang Yao patted the table and said, "damn thief, I'll find Lord Shang."

At present, Shang Dequan is very leisurely. He usually flirts with his concubine in the temporary residence. On a whim, he goes to the workshop to have a look. Therefore, when Chang Yao arrives, Shang Dequan happens to have just got up from his nap.

"What? You said Fang Xing killed your man?"

Shang Dequan asked vaguely while letting his concubine wash his face.

When the towel was taken away, a red face appeared, and a red spot on the nose looked ferocious.

Chang Yao said firmly, "Lord Shang, it's absolutely right. I wanted those two people to frighten me to wake up that night, but I didn't expect to be killed by him!"

Shang Dequan's eyes stopped and said faintly, "is there evidence for this?"

Chang Yao was speechless.

Shang Dequan was furious.

There's no evidence. You say wool! Are you here to amuse me?

Seeing Shang Dequan's bad complexion, Chang Yao hurriedly added: "Lord Shang, the thief is cruel. If you don't get rid of him, I'm afraid it will hinder the great cause of the king of Han Dynasty if the emperor's grandson has him around!"

"Hiss!"

Shang Dequan couldn't help laughing and said, "can't a person turn the sky?"

Waving his hand to stop Chang Yao's argument, Shang Dequan said confidently, "I have laid a big net. If I succeed, I can not only catch Fang wake up the little fish, but also make the crown prince and his son disheartened!"

"Dang Dang!"

There were stoves and bellows in the yard. One blacksmith was sweating to agitate the bellows, while the other held the pliers in his hand. After Zhu Fangyang lifted the sledgehammer, he quickly sent the red iron to the chopping block.

The tubular iron material wrapped outside the steel rod is placed in the semicircular groove on the chopping board. Zhu Fang is naked and his muscles are stretched, waving a sledgehammer to knock in this freezing season.

When the rolled two-layer barrel looked integrated from the appearance, Zhu Fang put down the sledgehammer and said wearily, "well, this time we must succeed."

Making muskets is very simple for future generations. Even some manual workshops can easily make them. But in this age of primitive tools and poor conditions, this is really high technology.

The next step is to cut off the excess parts at both ends, and then slowly drill the inner wall of the barrel into the same diameter, and try to keep it smooth.

"Can you draw rifling?"

Fang Xing took the processed barrel and looked at the dark inner wall. Some hearts itched and asked.

Zhu fangshicheng replied, "young master, it's very difficult, because it's difficult to ensure the accuracy in the process of drawing rifling, and the scrap rate is too high."

Under Fang Xing's instruction, Zhu Fang's theoretical progress is simply thousands of miles a day.

Fang Xing nodded and sighed, "it's still a matter of tools!"

He's been trying to build a rifle for a long time. At present, all muskets are smooth bore guns, but the precision and range of smooth bore guns are not satisfactory.

The future goal must be rifled rifles in the pipe wall, which has been proved by history.

But now I can't care.

Fang Xing took the gun barrel with residual temperature and said to Zhu Zhanji, "look, this is the double-layer forged gun barrel. The pipe wall is thick and the quality is uniform. Unless it is used by a madman, there will basically be no blasting."

Regardless of the greedy masu, Zhu Zhanji picked up the caliper on the table and measured the inner and outer wall dimensions of the barrel.

"Very accurate!"

Zhu Zhanji looked at Zhu Fang with a simple and honest face and was very satisfied with his own craft.

When Fang woke up and saw the accessories on the table, he said, "assemble it. Let's try the gun today."

The rest is not complicated, that is, the barrel is inlaid on the wooden support, and then fixed with something similar to rivets.

Zhu Zhanji waited eagerly, but when he saw that Zhu Fang was still installing a device with no function, he couldn't help asking, "brother Dehua, what is this?"

Fang Xing smiled. When it was installed, he took the gun, pulled up the mechanism behind him and said, "this is an ignition device. You see, this clip can clamp a fire rope. After pulling up, it is controlled by the lower trigger. When the trigger is pulled down, the fire rope will fall, and the medicine will be ignited."

"Bang!"

Fang woke up with a loud bang in his mouth, and then officially started the gun test.

There must be gunpowder for the gun test. Zhu Zhanji asked for a small amount of gunpowder yesterday, but Fang woke up and was not satisfied with the gunpowder, so he processed it himself.

The best formula of black powder is rotten street in the future, but it is still the highest technology at this time. And Fang Xing's black powder configured according to the standard is waiting for today's appearance.

On the table were two portions of gunpowder. On the left was the standard formula of the Ming army, which was brought by Zhu Zhanji. On the right is made by Fang Xing and Xin Laoqi. According to the latest formula, it is made into granules after multiple processes.

First light the fire rope, then fill it with gunpowder and lead bullet, and stab it with a full strip.

"Try it."

Although Fang Xing wanted to be the first to test the gun, he finally stood on the side, and his right hand pretended to be unconscious on his left chest, ready to block his face at any time.

Zhu Fang pressed her breath, aimed at the huge wooden target placed 100 meters away and pulled the trigger.

"Bang!"

After the earthquake, Zhu Fang was almost covered by smoke.

"How's it going?"

Without waiting for an answer, Zhu Zhanji ran to the target to have a look.

"Great deviation!"

On the big wooden target, the lead bullet is at least 20 cm away from the red center, and it is only shallowly embedded on the wooden target. There are some reasons why Zhu Fang can't shoot, but the main reason is that the power of gunpowder is not enough. At the end, there is a deviation.