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After Cheng Pan worked for an hour every morning, he began to get busy again on Xiaohuangzhou.

Since Cheng Pan personally experienced the combat effectiveness of the Mongolian army half a month ago, Cheng Pan understood why the Mongolian cavalry went south, and the Song Dynasty's fighting will and training at that time were still seen to see the troops in the past were defeated so quickly, and the tactics of large-scale cavalry shooting were too powerful. Cheng Pan can imagine that when the army of the Song Dynasty lined up and fought, the morale of the army fell extremely quickly when it fell into a situation where it could only be beaten, and when the army of the Song Dynasty was about to collapse, the Mongols moved to charge, and the Song army was defeated. Cheng Pan couldn't believe that his village protection team could hold on to the rain of arrows, and even if he did, the battle loss rate was too high, and Cheng Pan's forces couldn't bear it. There are only two ways to fight the Mongols' cavalry, the first is to train a cavalry to maneuver against maneuver, and the second is to use a lot of long-range weapons. Archers are considered one kind, but it takes four or five years to train an archer, and the second is the musket, the training cycle of musketeers is short, and they can become soldiers in a month. In history, the tactics of defeating the Mongol soldiers in the spring were to first use muskets to resist the enemy, and then use cavalry to charge after the enemy was defeated.

Cavalry? Cheng Pan doesn't have any horses in his hands now, so even if he gets a few batches, it's useless. Moreover, the cavalry needed a lot of forage, and Cheng Pan was worried about logistics. But the musket must be engaged, and it can't be too low-end musket, the range of the musket in the Ming Dynasty is not as far as the bow and arrow, and the quality is not the same, and there is no unified standard for the chamber. Cheng Pan decided to make a more ferocious musket.

Thinking of the thousands of feather arrows that flew over him ten days ago, Cheng Pan couldn't help but sneer and said, "I will give you back the same volume of dummy bullets."

The biggest technical barrier to making muskets in this era is the barrel, as for the fire device, it is enough to use flint, as for the shooting gun, Cheng Pan does not want to study the dangerous thing of thunder mercury for the time being.

As a college graduate who has no hands-on ability in modern times, this barrel manufacturing made Cheng Pan hands-on for more than a month.

As a lover of online literature, Cheng Pan has seen three steel pipe manufacturing methods on the Internet, and he remembers these three.

The first type: first create a copper rod, then forge a thin layer of wrought iron plate, and then heat and roll the wrought iron plate onto the copper stick to become a wrought iron rod wrapped in the copper stick

The wrought iron rod is heated to 12ooc to 13ooc, then the copper can be dissolved, and the rest is the wrought iron pipe, and then it is put into the coke oven for carburizing treatment while the iron pipe is still hot, followed by quenching.

In the actual operation process, forging is no problem, and the hydraulic forging press has used a large number of parts treated by the carburizing process. Wrought iron, which has a weak texture, is prepared in minutes. The copper rods in the iron pipes also melted perfectly. The main problem is how to create a copper stick with a thick barrel caliber. Such a thin copper rod with pouring method or forging grinding method is a large number of scrap rate, and at the same time the loss rate of copper is amazing, the average two barrels will waste the consistent copper money, Cheng Pan regretted why the warehouse in Hangzhou did not give a few copper cannons. And it takes too much time for skilled workers to polish copper sticks. After using this method to build twenty barrels, Cheng Pan chose to stop first and change to the second method.

The second is the famous centrifugal casting method, centrifugal casting is a casting method that pours liquid metal into a rotating casting mold, so that the liquid metal is filled with the casting mold and solidified under the action of centrifugal force. Cheng Pan still tried this futuristic technology under such rudimentary conditions. As a result, the biggest problem was security. Cheng Pan and others first carefully transported the container containing the molten iron to a workshop not far from the blast furnace, then added wrought iron to the molten iron to heat and melt it to make high-carbon steel, and poured molten steel from several inlets of the long ceramic-textured columnar mold. Then seal the mold and rotate it vigorously. I have to say that this method is good, hundreds of qualified barrels were produced in two days, but there were two production accidents, the first time the seal of the mold was loosened in the process of shaking, and the splashed metal droplets were fired in the room like a Makqin heavy machine gun. Two workers were splashed at the screams. The second time was that the mold was directly broken, and the metal water was scattered on the ground, causing a fire that directly burned the workshop, and there were no casualties. Cheng Pan believes that at the very least, the current 200 workers should be expanded to 2,000, so that there will be enough manpower to produce a large number of steel parts and qualified molds. Centrifugal casting can be used safely.

When the centrifugal casting workshop was burned down, Cheng Pan came to his water conservancy workshop to carry out the third method. The third method is to drive the drill bit directly to drill deep holes in the wrought iron rod with hydraulic power, and then twist the holes. Not to mention the kung fu of the wrought iron rod, the drilling of the deep hole alone reminded Cheng Pan of a scene before the crossing - it took a day or two to hang up the download with Thunderbolt with a lot of hard work in more than ten k. Yes, it takes two days to complete a deep drilling with each barrel. It can't be drilled fast, and the diamond on the drill bit is carbon and is afraid of heat.

After trying these three methods again, Cheng Pan decided to compromise between the first and third methods.

It is to replace the thin copper rod in the first method with copper wire, the specific operation is to use an extremely thin wrought iron sheet to wrap the straightened copper wire into a metal column with the thickness of the barrel caliber, and then the metal column is held into a metal rod thicker than the barrel with a forged wrought iron plate, and then heated for simple hot forging to fuse the gaps between the metals, and then the metal column is processed to the thickness of the pipe with a cutting machine tool. The metal column is then heated until the copper in the core melts and flows out. A wrought iron pillar with a deep hole came out, and then a drill bit was used to expand the deep hole to the ammunition caliber. Finally, the entire barrel is carburized.

This process is completely inconsistent with the orthodox technology tree of modern steel pipe manufacturing. But fortunately, at a rate of 3o per day, Cheng Pan is now provided with a large number of qualified barrels.

In the late spring of 134o, Cheng Pan gathered a team of 15o people to protect the village in the barnyard.

Cheng Pan said after everyone gathered and counted, "Everyone, everyone has been training hard with spears for so long. But in the future, you don't want to use spears."

After listening to Cheng Pan's words, although the village protection team has been emphasizing discipline since its establishment, it couldn't help buzzing at this time, and after dozens of seconds, the team quieted down under the reprimand of the team leaders who reacted. Cheng Pan continued, "Give up the spear because the spear is backward, and everyone needs to equip a new weapon. After hearing this, the village guards were curious about what kind of weapon could make the spear lag behind, knowing that after replacing the three-edged bayonet, the spear almost killed with a single hit.

Cheng Pan saw everyone's doubts, so he opened the wooden box next to him, which was full of rows of muskets. This kind of musket is 1.6 meters long, with a wooden butt, rifling in the barrel (Cheng Pan finally drew a rifling line that rotates the warhead after several tests), front-loading ammunition, ignition method flint, caliber 18 mm, with a card seat, with a bayonet length of 1.8 meters, the gun weighs 6.2 kg, and the ammunition is combined, and the warhead is the famous Mini bullet, in fact, the Mini bullet is a low-tech thing, in fact, it is to make a groove in the tail of the lead bullet, and the gunpowder explosion squeezes the lead bullet to make it thicker and tightly combined with the barrel, so that the explosive gas completely acts on the lead bullet. Cheng Pan's tunnel gun has a crosshair, the effective range is basically about 15o meters, and the killing range is 3oo meters away. No matter how far it goes, it is useless and cannot be seen with the naked eye. Cheng Pan was very satisfied with this musket and named it the No. 1 rifle. Cheng Pan's name for him is very simple, when the power of this gun is tested, it is not without the advice of craftsmen

He chose a mighty name, but Cheng Pan didn't think it was necessary, the reputation of the weapon depended on the battle record. In later generations, the simple letters AK47 were the guns it represented and became the name of the murderer.

At this time, the masterpiece in the eyes of the village guards was a strangely shaped spear, which was taller than a person but not as long as a spear.

Cheng Pan waved his hand and asked a humanoid wooden rake to be set up ninety meters away. Then he said to the people of the village guard, "Let me show you how to use the new weapon and how powerful it is." When everyone heard Cheng Pan say this, they all watched Cheng Pan's series of actions with wide eyes, and at the same time felt a little strange in their hearts, this stabbing target was too far away.

Cheng Pan skillfully carried out a series of steps, biting open the medicine bag, pouring part of the gunpowder inside into the fire pool, and then stuffing the remaining gunpowder and projectiles into the barrel with a strip, then aiming at the star, and pressing the trigger. There was a loud "pop" and a burst of white smoke came out of the barrel of the gun, startling everyone who was watching carefully.

At this time, Cheng Pan put down the gun and pointed at 6 Hai and said, "Captain 6 Hai is going to take two people to carry the target over." At this time, everyone reacted that the new weapon had exploded once. When the target is taken and passed on. Everyone was surprised that a fist-sized hole appeared in the wooden target that was one inch thick. Everyone was amazed at its power, but there was still some confusion.

Cheng Pan explained: "The name of the new weapon you see is the musket, and its principle is the same as that of a cannon, which is to let the gunpowder explode from the tube and let the lead shoot out."

Hearing this, everyone showed a sudden look, and at the same time there was a little excitement in their hearts.

Cheng Panyan looked at everyone and said: "The time for each shot of the musket is about five breaths, this weapon requires a new method of warfare, and as a musketeer, you must also have the courage to fight hand-to-hand combat, the musket just helps you not to be helpless after meeting the archers, do you see the bayonet in front?" How about the locals rushing in front of you after carrying your shots? ”

"Report to the sir, you should line up to stab" 6 Hai shouted

Cheng Pan looked at him and said, "Yes, it's to line up to assassinate, do you have the courage?" ”。

"Yes," all of them replied together

Cheng Pan: "Next, everyone will come to get a new weapon, and I will teach everyone to be familiar with the use of the new weapon."

So Cheng Pan began to explain to everyone what each part of the firearm does, and how to assemble it.

In the following month, there were often neat bursts of gunfire in Xiaohuangzhou. and screams of assassination.

Cheng Pan conducted 20 live firing every day for 2 months, resulting in one and a half tons of sulfur and seven and a half tons of saltpeter being consumed.

All the guards changed the barrels of their guns twice, and the bayonets were damaged.

At the same time, the method of dropping bricks on the barrel was also applied and trained. After two months of training in Cheng's infantry drills, Cheng Pan gave his team a score of 60 points.

Because the qiē drills were all inferred by Cheng Pan based on a trace of knowledge before the crossing, the only thing that made Cheng Pan feel at ease was that his muskets were trained more with live ammunition, and the accuracy was very good.

In any case, Cheng Pan's sense of security in this world has greatly increased after he has the first musket team in his hand.

From June to July, the summer grain of Xiaohuangzhou is ripe, and the people of the whole island are busy harvesting the grain. During this period, there was a funny thing, and the people of the county and the county town of Dangtu organized an alliance to collect rent with the title deed.

"Cheng Xiucai, it is written in black and white on this paper, the land on Xiaohuangzhou belongs to all of us, and it is natural that you have to pay rent for farming on it," a sharp-faced person said to Cheng Pan with a sneer.

"That's right, Master Cheng Zhuang, the title deed belongs to the imperial court, if you don't pay it, you will fight against the imperial court, you have to pay eighty percent of the grain you hunt on the land north of the Xiaohuangzhou River, and the owner of that land is the family of Master Babur, you have to weigh it." A Mongolian said to Cheng Pan in a threatening tone.

This group of people are clamoring for land rent.

It's not that they haven't heard that Cheng Pan and the others killed some people when they took the entire island. In their minds, these were just a relatively large country farmer's brawl, and they didn't have intuitive feelings. Moreover, the harvest of Xiaohuangzhou this time is too big, and the big ones make everyone jealous, and the forty or fifty thousand mu of paddy fields are all full of ears, and each mu has a yield of 200 catties, which is much higher than the output of their own tenants. Besides, there are also Mongolian adults who destroy the rent this time, and Cheng Xiucai can't escape no matter what.

At this time, Cheng Pan walked up to the most ferocious Mongol. Push it to the ground with one palm. stepped on his back with one foot, slowly squatted down, and said softly, "I just don't admit this account, how." The Mongolian shouted in pain, "Han dog, you die, Master Babur will chop you up and feed the dog." With a whoosh, Cheng Pan poked his head with a three-edged bayonet. Although it was not the first time to kill someone, such a bloody scene still made Cheng Pan a little uncomfortable. But now Cheng Pan pretended to be indifferent and said to the surroundings: "Do you want to accompany him?" The people around were silent, all the faces were pale, some people had weak legs and even sat down, and some people even had wet crotches, and a breath of urine came from them. Cheng Pan frowned and said, "Get out of here." The landlords fled with a crawl, but a few people remained, not because they were bold, but because they were weak and could not walk.

Cheng Pan: "Wang Tianzhu, find a few people, bury the bodies, and throw these people out."