The production of the self-generated fire gun is basically completed, and Su Chengyu suddenly remembered that this is actually not a self-generated fire gun.

Not to mention the huge difference in bolts, at least Bi Maokang's self-generated gun is a kind of long handgun, and the one in front of him is a standard rifle. For the sake of distinction, he decided to name the new flintlock gun.

Su Chengyu explained to the craftsmen the work arrangements for the next few days - the main thing is to make a few more sets of bolts and optimize the processing process.

Then he found Xu Tong, the ambassador of the Ordnance Bureau, and asked him to take him to the Gunpowder Division.

After bribing Xu Tong with a few taels of silver, two craftsmen from the Gunpowder Division were sent to Su Chengyu's helpers.

According to Su Chengyu's instructions, they mixed a pot of gunpowder with water and mixed it evenly, and then put it outside the house to dry.

The sun in Fujian in July was so strong that in less than an hour, the pot of gunpowder had dried into a hard lump.

Su Chengyu poured out the black stuff in the basin, asked the craftsmen to break it up, and then carefully sifted it through a sieve, leaving only the size of a sesame seed into a bag.

This extremely simple method of processing is gunpowder granulation.

Su Chengyu vaguely remembered that the granulated gunpowder could increase the power of the firearm by 15%! What's more, it can reduce the chance of exploding.

After all the preparations were done, he wrapped the freshly baked flintlock gun in a thick linen cloth, and asked Qiao Qian to carry a small half bag of gunpowder and go home.

Chen's Palace.

With the flint hair gun as the stepping stone and Yu Xin's battalion as the breakthrough, Su Chengyu decided to go to see Emperor Longwu Zhu Yujian in the next few days.

But before that, he had to be prepared.

He asked people to take the information after the establishment of the Longwu Dynasty to look through, and then asked the chief of the palace to inquire about the policy of the imperial court.

Until the next day, Su Chengyu finally had an overall understanding of Emperor Longwu.

Speaking of which, Zhu Yujian is definitely a wise man, and he has set a lot of quite useful policies at the beginning of his accession to the throne. For example, it strictly prohibits party strife, fights corruption, appoints meritocracy, unites anti-Qing forces, pardons civilians who have returned to the Manchu Qing Dynasty, and so on.

It can be said that in his era, he basically did everything he could think of. However, due to the limitations of the times, he could not imagine it in many aspects, and second, he had no money or soldiers in his hands, and the implementation of policies was almost zero.

For Zhu Yujian, a good emperor who is capable but born at the wrong time, Su Chengyu must find a way to keep it.

He was not so arrogant that he thought that he could save Daming from the crisis by himself. In this era, the emperor has unparalleled appeal, and he is also the spiritual pillar of the vast majority of people. In the feudal era, a Ming monarch was really worth a million heroes.

Su Chengyu combined the experience of his previous life and after careful thinking, he already had a rough plan in his heart.

Just after noon the next day, he asked Chan Yi to take the whole set of clothes for the prince and drive towards the palace.

From this moment on, the historical fate of the Ming Dynasty will depend on him Su Chengyu!

The so-called imperial palace of the Longwu Dynasty is just a slight expansion of the former Fujian political envoy Si Yamen, which is pitifully small compared to the Forbidden City, but it is only six or seven miles away from the Chen Wang's Mansion, which was originally a scholar's yamen.

Zhu Yujian was reading a book in the imperial study, and he heard a report from the eunuch that the prince of Chen asked to see the treasure.

He was a little strange, this nephew had been in a coma for more than a month, and he had just woken up not long ago, and he had sent a eunuch to deliver some medicinal herbs. When he was in Nanyang, this nephew didn't go out much, and he rarely saw him, but today he took the initiative to come to give gifts...... Is it for the sake of the lord?

He put down the book in his hand and asked the eunuch to announce Zhu Linmiao.

Su Chengyu still had the etiquette that Zhu Linmiao had learned in his mind, and he was clear about the rules of the palace.

He walked all the way with the eunuch and stayed in the imperial study, only to see Zhu Yujian sitting behind the imperial case reading a book, in his forties, with a garlic nose, his appearance was not outstanding, but his expression was quite kind.

Su Chengyu stepped forward to pay respects. Zhu Yujian said, "Let's be flat", then put down the book in his hand and said with a smile: "What did Lin Mi send me?" ”

"It can be a treasure of the country!" Su Chengyu stood up and spread his hands and said, "It's just that he was detained outside the palace gate by the Imperial Forest Army, and he had to be announced by the emperor's uncle before he could present it." ”

"The treasure of the country?"

This aroused Zhu Yujian's curiosity even more, and he turned his head and ordered the eunuch: "Pang Tianshou, go and let them bring it." ”

Su Chengyu continued: "Uncle Huang, this thing may not be enough in the imperial study, please move to a more spacious place." ”

Zhu Yujian became more and more curious, thought for a while, and said, "Go to the Imperial Garden." "This guy has been really stuffy enough since he came to Fujian, and he looks very excited at this time.

When they were young, the uncle and nephew walked into the imperial garden. Su Chengyu scratched his head a little - the Fujian Political Envoy originally did not have a garden, and after it was converted into a palace, he chose a spacious land and expanded it slightly, and simply planted some flowers and plants, which is the so-called imperial garden.

The length is only about 60 meters at most, and the width is no more than 30 meters, which is still not enough, and it seems that it can only be made up for demonstration.

The eunuch Pang Tianshou then led two forbidden soldiers to the Imperial Garden, and the two of them respectively held a long pole wrapped in black cloth and a sack containing a small half.

"Open." Zhu Yujian gestured to the two forbidden soldiers.

When the two of them opened the cloth bag and sack neatly, Zhu Yujian couldn't help but be disappointed, and glanced at Su Chengyu, "This bird gun is the treasure of the country?" ”

"Uncle Huang is aware of this, this is not an ordinary bird!"

Zhu Yujian nodded, picked up the firearm and watched. He was familiar with firearms, and soon noticed the difference in the ignition mechanism, "What's so special about this gun?" ”

"This is a spontaneous fire gun designed by the former military department Bi Da, and the minister improved it on this basis and called it a flint gun. It can be used in real combat. Su Chengyu said, "Compared with the bird gun, this gun cancels the ignition rope and the firing interval is shorter. It can also increase the density of the formation, and it is not easy to be exposed at night......" he explained in detail the advantages of the flintlock pistol.

Zhu Yujian's eyes lit up. In the ninth year of Chongzhen, he led the troops to Qin Wang, and he actually commanded the battle on the battlefield. As soon as Su Chengyu said it, he immediately understood the advantages of the flintlock pistol, "If this is the case, it can simply double the combat power of the army!" ”

He pointed to the end of the imperial garden, "Pang Tianshou, go over there and put up a few targets." ”

"Yes."

After a while, several thick planks were erected more than sixty meters away, and Zhu Yujian handed over the self-made fire to a forbidden soldier, and motioned to the wooden target, "Send a few guns for me to see." ”

If it weren't for the fact that guns in this era often exploded, he really wanted to test fire them himself.

Su Chengyu briefly explained the operation steps to the forbidden army, which was actually basically the same as the use of the bird gun, and also omitted a few steps to deal with the fire rope. It took little effort for the Forbidden Army to master.

He skillfully poured gunpowder, combined the fire sickle, loaded the propellant, loaded the bullet, and pestled the gunpowder...... More than a dozen movements were extremely coherent, and in less than a minute, they slammed a shot at the wooden target in the distance, and the wooden target exploded a large piece in response.

Emperor Longwu could obviously feel the short preparation time for this shot, he thought for a moment, and said to the other forbidden soldier: "Go and get a bird's gun, and you can shoot together and see it." ”

"Yes!"