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"Baochen, I know what you said, but you only know one thing, not the other. The power of the firearm is very great, provided that the horses of the Mongolian cavalry suddenly die when they charge, and the Mongols stand still on the ground, so that our firearm can exert its power. And a firearm may explode after a few hits, and it can also injure the enemy but injure itself, so the possibility of replacing traditional weapons with firearms is not high. Lord Wang reminded.

Chai Baochen quickly thought about several improvements in the history of the fire gun in his mind, and he remembered that the Yuan Dynasty copper fire gun treasured by the Shaanxi Provincial History Museum was broadcast on TV, which was composed of a gun chest, a gun hoop, a fire door, a fire door cover, and a medicine room. Although the firearms were not powerful enough, they were able to deal with light cavalry at short and medium distances due to swords, guns, halberds, and crossbows. At that time, the fire gun often fired not projectiles, but shotguns, and the striking range was one side, which could hedge against the dense cavalry in front of it and had a better lethal effect.

It is worth noting that some of the muskets were also equipped with a rear pole and a spearhead at the end of the pole in order to allow the firecracker to engage in hand-to-hand combat with the enemy. The disadvantage is that it is large in size, and in order to avoid exploding the chamber when firing, and also to improve the firmness of use as a cold weapon, the wall of the gun tube is thicker, so the weight is also increased accordingly.

These guns are particularly slow to reload, and they also require the gunpowder operator to have a good grasp of the amount of gunpowder used, and the guns will not be able to be used properly in windy and rainy weather. Due to the constraints of technology and technology at that time, firearms have never been able to get rid of the operation methods such as loading gunpowder and projectiles from the muzzle.

Chai Baochen thought for a while and said, "We can develop a breech gun!" And it has to be able to fire projectiles one after another! ”

"What? You repeat! Lord Wang leaned on the back of the chair and sat up straight.

"My lord, your concern is that the firearm is not practical, and all I have to do is make it a meat grinder on the battlefield! We can improve the way the gun is fired and make it lighter; Instead of firing projectiles and shotguns; changed from muzzle-loading projectile to breech-loading with magazines; There is no need to hold a torch to ignite, but instead to ignite the fire by hitting the flint with a copper wheel.

At the same time, the barrel should be cast with fine copper, polished smooth inside the tube, and a spiral-shaped groove should be installed in the chamber, which can make the projectile rotate back and forth, and the projectile will be changed to lead bullet, and the bottom of the lead bullet will be made hollow, and the effective range can be increased by three times after the explosive impulse pushes the projectile in the direction given by the reciprocating line! Chai Baochen suddenly said the advantages of smoothbore guns and rifles in later wars.

You must know that in the last years of the Qing Dynasty, the Eight-Nation Coalition Army was armed with muskets to loot in Beijing, burning the Old Summer Palace and Qingyi Garden, and it was difficult for the Boxers to form effective resistance, and finally the Qing government was forced to sign the humiliating "Beijing Treaty". It can be seen that once this gun technology is used, it will greatly change the pattern of warfare.

"Good! That's great! What do you do with this brain? How does it work so well! Lord Wang was overjoyed, "Can you make a gun?" ”

Chai Baochen rolled fireworks in later generations, because his family wanted to sell more money, in the early years, when the government's crackdown was not too strict, he also rolled a lot of powerful fire pipes. When Chai Baochen was a child, he used only a rubber band and a little scrap iron to make match guns. He thought for a moment and replied, "I should be able to, but I need professional help." ”

"No problem, I'll mobilize the best firearms craftsmen to help you, but this matter needs to be fast, and it won't leave us too long to do research first." After Lord Wang finished speaking, he looked at Chai Baochen eagerly. Chai Baochen looked at Lord Wang and nodded vigorously.

Next, Chai Baochen entered the state of scientific research. He has played with a lot of toy guns and even shot birds with an air gun. It was when he was in elementary school, the government was not strict with the barrel of the air gun, and Chai Baochen's uncle once took Chai Baochen to the street to shoot sparrows, and he felt the great power of a gun. In order to make a practical firearm, it must be inseparable from several parts: the butt, trigger, crosshair, chamber, spring, and lock.

It is best to produce submachine guns, using an open bolt, when the trigger is pulled, the bolt is released to move forward, the bullet is loaded through the magazine and the bullet is fired, and then the trigger is pushed back, the empty cartridge case is ejected, and the next bullet is fired in a loop. And it should be designed as a submachine gun operated by recoil, with a hole drilled on the left and right sides of the bolt, a guide rod in each of the two holes, and a guide rod wrapped around the reentry spring, which expands and expands with the forward and backward movement of the bolt.

The reason why Chai Baochen designed it this way was because the productivity of this era was not high enough, and this design allowed the use of less precise parts that were manufactured. With his mind decided, he began to design the plan, and after two days of busy work, he finally drew the plan and construction process.

In the past two days, Lord Wang has brought in the best craftsmen, and the craftsmen have been busy day and night under the guidance of Chai Baochen. Ten days later, the first gun was ready, along with ten rounds of ammunition. Chai Baochen was very excited, he was in the woods, and called Lord Wang, asking him to witness his invention together.

"My lord, the gun designed by the lowly is called a submachine gun, and it can currently carry ten rounds at a time, and shoot at least a mile away. Humble this ordered the craftsman to try out. "Chai Baochen is very confident in front of Lord Wang.

"Good. I don't know how to experiment. Lord Wang asked,

"The process was simple, the barrel was made of very strong iron, and the bullet was modified by me to now hit the tree a mile away. Can you see the tree, the one with a red cloth tied to it? Chai Baochen was a little impatient.

"Well, good. Let's go. Lord Wang commanded, and he looked at the tree in the distance.

Chai Baochen walked up to the craftsman and said, "Raise the gun, prepare, release!" ”

"Bang!" There was a loud bang, and thick black smoke came from the craftsmen's hands. Lord Wang was taken aback, he turned his head to look at Chai Baochen, his face was dark, and then he looked at the craftsman who shot the gun, his hands had been blown off, covered in blood, and he fell to the ground. And that gun is still smoking.

"Chai Baochen!" Lord Wang hurriedly turned around, and he grabbed Chai Baochen. At this time, Chai Baochen suddenly fell to the ground. Among the people who pinched him hard, Chai Baochen woke up and said, "Alas, I'm too stupid, what a waste!" ”

After three days, Chai Baochen finally recovered under the careful care of the doctor. When the submachine gun was tested that day, the barrel of the gun exploded, killing the craftsman who tested the gun on the spot. Chai Baochen was lying on the bed puzzled, what the hell was going on?

He recalled his design ideas over and over again, and thought back to the details of his own fireworks, and suddenly, he patted himself on the head and understood the reason for the failure. The gunpowder in which a bullet is loaded is not the same as the gunpowder in a firecracker. The energy required for the flight of the bullet is provided by the combustion of the fired gunpowder, which is called "fired gunpowder", which is based on explosives such as nitrocellulose, which burns very slowly and pushes the bullet forward. The gunpowder used in firecrackers is equivalent to "explosives", which burns very violently and produces an explosion. The bullet casing cannot withstand such an explosion and will eventually blow up the barrel.

It seems that under the conditions of productivity in this era, submachine guns cannot be made, but grenades can, and Chai Baochen found a new target in frustration. The grenade is suitable for throwing at close range, and it can also be tied to the bow and arrow during the siege, and the explosives and fuses of the grenade are very simple to make, Chai Baochen is very confident that he will go from failure to success, and he showed a happy smile.

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