Chongzhen Daming: Starting from Coal Mountain

Chapter 430 Rifled Rifle
"Master Zhang Jing." Yabran came over.

"This is the last dry food we carry, what should we do next?"

"If it doesn't work, let's go around and go deep into Xuzhou." A stern look flashed in Aobai's eyes, "I don't believe that there are such fortresses all over Xuzhou."

"Master Zhang Jing, but we only have a hundred riders."

Yabran advised, "Will this be too risky?"

After experiencing the battle of Xiazhen and the battle of Xuzhou, Jiannu's perception of the Ming army has changed a lot, and he no longer dares to underestimate it as before.

In the depths of Aobai's eyes, a haze also flashed across.

The terrifying scene of being chased and killed by Yi Ding two years ago appeared uncontrollably in front of his eyes. If he really went deep into Xuzhou, if he really met Yi Ding again, he might not have the good luck he had before.

Seeing that the time was ripe, Yabran persuaded him in a low voice: "Lord Zhang Jing, why don't we give in to the ten kings? The ten kings have made it clear that they want to use military supplies to control our inlaid yellow flag. If we refuse to give in to him , Once the ten kings get angry, it will be a big trouble to use our cattle to kill the chickens and monkeys."

Aobai's heart trembled for a moment.

This possibility exists.

The third younger brother Murima also persuaded: "Brother, you should surrender to the ten kings. The current situation is already obvious. Will be killed by the ten kings to sacrifice the flag, the empress dowager will not turn against the regent to save us."

Yabran sighed, "They don't have the ability to keep us even if they want to keep us."

Oboi also sighed softly, and said helplessly: "Okay, then you two go to Dongchang Mansion and tell the ten kings that from now on, I, Oboi, will only be the regent and the ten kings."

"Brother, if you don't go to the Ten Kings, I'm afraid you won't believe it."

"Yes, this matter needs to be done by Mr. Zhang Jing himself."

"Just say that I was hit by an arrow." Aobai said with a dark face.

"I'll pay him a respect after I recover from my injuries, that's all."

Murima and Yabran had no choice but to get on their horses and run to Dongchang Mansion.

Watching Murima and Yarlan go away, Obai sighed softly.

It seems that the Qing Dynasty is about to change, because all the military officials left by the late emperor have defected one after another.

Tan Tai, Ta Zhan, Bai Yintu, Suo Ni, Tu Lai and other military officials of the Yellow Banner have all joined the Prince Regent's command either explicitly or secretly, and now it is finally his turn to Oboi, the general trend cannot be violated.

……

Nanjing Guozijian.

Chongzhen put away the urgent delivery and asked: "Gao Banban, are Xu Yingwei and Yan Yingyuan back?"

Gao Qiqian replied respectfully: "Returning to Lord Long Live, Lord Xu and Lord Yan have already returned. They just returned to Nanjing this morning. They should be in the barracks."

Chongzhen waved his hand and said again: "Ask them to come to Yilun Hall right away, by the way, call the crown prince and King Ding together."

Xu Yingwei and Yan Yingwei are already qualified to serve as staff officers, and Zhu Cihong and Zhu Cijiong are called in to train them.

"The old slave leads the decree." Gao Qiqian received the decree, and went outside the Yilun Hall to arrange for the fast-footed young eunuchs to deliver the decree to Xu Yingwei, Yan Yingyuan, the crown prince, and King Ding.

Xu Yingwei and Yan Yingyuan are in the barracks inside Shence Gate.

So after receiving the order, the two rushed to Yilun Hall very quickly.

But Zhu Cihong and Zhu Cijiong were a long time late, because the two brothers rushed back from the Daming Arsenal at the foot of Shihui Mountain, and it took almost half an hour to ride fast horses.

"Look at this first."

Chongzhen first handed the urgent delivery to Zhu Cihong.

Zhu Cihong and the other four all had serious expressions after reading the urgent delivery.

"Father, I didn't expect Jianu to send troops before us." Zhu Cijiong said, "If that's the case, there is nothing to say. Send troops directly to Xuzhou and fight against Jianu again."

Zhu Cihong said, "Father, this matter is somewhat illogical."

Xu Yingwei also said: "That's right, Jiannu just fought against Puppet Shun last year, and the fight was delayed until October, so it is impossible to fight again in a short period of time."

Yan Yingyuan also said: "I also think that it is unlikely that Jiannu will go south in a large scale. Most of their intentions are to kill and plunder, to destroy Xuzhou's farmland as much as possible, and to consume and weaken our Ming Dynasty's national power."

"My son also thinks so." Zhu Cihong said deeply.

"If Jiannu really wants to go south in a big way, Li Ruolian won't know about it."

Li Ruolian's lurking is the top secret, but several people present know it.

Chongzhen actually thought so in his heart, but he had no confidence in thinking so alone.

Now hearing that Xu Yingwei and the others held the same point of view, they immediately strengthened their judgment.

"Do you think so too?" Chongzhen said, "In this case, it should be just Jiannu's harassment, and Xuzhou and Guide's town soldiers are enough to deal with it."

"But just in case, we still need to be prepared."

"In case Jiannu goes south in a big way, he will be able to send troops as soon as possible."

After a pause, he continued, "So don't go to sea these few days."

"Leadership." Xu Yingwei and Yan Yingyuan cupped their hands and turned to leave.

"Hey, don't be in a hurry." Chongzhen waved his hand and said, "Tonight I'm going to entertain the group of scholars from Xiyang at Liubiju, and you two will go to accompany me when the time comes."

However, Xu Yingwei and Yan Yingwei shook their heads when they heard this.

"Your Majesty, we won't go." Xu Yingwei said, "If we have time, let's redraw the map of Beizhi and Liaodong first, so as not to delay things."

In fact, China has had maps since ancient times, that is, maps.

However, the maps of ancient China are all abstract.

It means that it is okay to look at the map, but if you march and fight according to the map to make a battle plan, you are looking for abuse by yourself, and you will definitely be deceived by the map to doubt your life.

Last year, when troops were sent to Yunnan, the new army suffered from this.

So after returning to Nanjing, Xu Yingwei and the others began to redraw the map.

This time it is not an abstract map, but a modern standard map drawn after field survey.

"How do you draw the maps of Beizhi and Liaodong?" Chongzhen was surprised, "I haven't done a field survey."

Xu Yingwei smiled and said: "Because I can't conduct on-the-spot surveys, I can't draw an accurate map, but there are many people who have been to Beizhi and Liaodong. It is no problem to draw a rough map based on their description of the terrain of Beizhi and Liaodong. , and even rough maps are much more accurate than previous maps."

"Okay." Speaking of this, Chongzhen couldn't stop the two of them.

After seeing off Xu Yingwei and Yan Yingyuan, Chongzhen asked his two sons again: "Can the rotary lathe be used?"

During this period of time, Chongzhen was not idle, but had been rushing to the Daming Arsenal to participate in the production of rotary lathes.

In fact, lathes have existed for a long time, but there is no mechanical power, but only human power. There are several types of lathes and grinders powered by pedals recorded in Tiangong Kaiwu.

Rotary knife lathe, as the name implies, is a rotary knife lathe.

The reason why Chongzhen personally participated in the research and development of this lathe was to draw rifling for the gun barrel.

As the saying goes, you need to eat food one bite at a time, and do things one by one. When the standardized production process of flintlock guns gradually matures, you can consider making rifled rifles.

From the matchlock to the flintlock was a revolutionary advance.

Then from the smoothbore gun to the rifled gun is also a revolutionary progress.

Compared with smoothbore guns, the improvement of accuracy of rifled guns is not 01:30 points.

The effective range of a musket is only 80 meters in fifty steps at best, and it must be fired in line. If a single musket is fired, the effective range is only thirty steps and less than 50 meters.

In other words, the accuracy of a smoothbore gun exceeding 50 meters will drop off a cliff.

But the effective range of a rifled gun can easily exceed 200 meters.

This means that an army equipped with a rifled gun can fire at a distance of 200 meters, enough to crush a smoothbore gun.

In fact, rifled guns are not a new thing. Rifled guns appeared in the West more than 100 years ago, but due to the labor-intensive production and the troublesome loading of ammunition, they have not been popularized.

It wasn't until the rifle evolved from front-loading to rear-loading that rifled guns really became the masters of the battlefield.

But as a traverser, Chongzhen actually knew that there was a way to solve the problem that the front-loading rifle gun was not easy to reload and the airtightness could not be achieved at the same time.

This is the bottom concave bomb, or Mini bomb.

Change the warhead from circular to cylindrical, and make a concave conical cavity at the bottom.

In this way, after the gunpowder in the gun chamber detonates, it will form a huge pressure on the thin round edge of the concave cavity, and then the thin round edge will expand and tightly stick to the gun chamber, greatly increasing the airtightness.

But Minie bullets are only useful in conjunction with rifled guns.

If there is no rifled gun, even if there is a Minie bullet, it can only increase the range, but the accuracy will decrease, because the flight stability of the circular bullet is obviously better than that of the cylindrical bullet.

After the cylindrical warhead exits the chamber, it will inevitably roll over.

Once rolled, the shooting accuracy will be horrible.

So the actual killing effect is not better than the round warhead.

Therefore, Minie bullets must be used in conjunction with rifled guns to be useful.

Because with the rifling, the Minie bullet will rotate at a high speed under the urging of the rifling, and it can still ensure stability due to the high-speed rotation after it is released from the chamber, so its accuracy far exceeds that of a round bullet.

But if you want to draw a rifled gun, you must realize the standardization of the barrel.

You can't make a broach for each gun barrel, can you?
Now that the standardization process of gun barrel processing in Daming Armory has matured day by day, you can try to make rifled guns.

Since drawing rifling is very time-consuming and labor-intensive, it is definitely impossible to think of a large number of equipment before the steam engine is put into practical use, but it is possible to make a small amount of rifled rifles to equip elite troops.

Such an elite force can play a key role.

And if you want to draw rifling, you must have a rotary lathe.

The human-powered rotary knife lathe designed by Chongzhen himself has four sharpening knives on the tie rod, which can pull out four female rifling lines at the same time in one process, but the strength requirements for the tie rod are also increased accordingly.

(End of this chapter)