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To put it bluntly, the exhibition in Li Su's mouth is a tasting activity, Li Su explained, and several people understood.

"This people's livelihood is an issue that you parents should pay attention to first, and then you will be in charge of this exhibition, you can't let me interfere in everything, otherwise how can you still establish prestige in front of the people?" Li Su said to a few people.

Several people glanced at each other and said, "Then Your Highness, let's try it!" ”

Li Su nodded, the reason why he delegated power like this is also to train a few people, otherwise it is not good to be too dependent, and there will be more things to be planted in Yizhou and even Chengdu in the future.

After explaining this matter, Li Yu rode back to the palace, and Jin Daqian greeted him halfway, panting, and said: "Your Highness, someone from this Taoyuan said that Guo Xianyuan's gun has broken through, do you want to go and see." ”

"Really?" Li was overjoyed, and whipped the red boy's buttocks, and the beast hissed and scattered its hooves and ran to the south gate.

"Hey, Your Highness, wait for me!" Jin Daqian pulled the reins for a long time before turning the horse's head, this ordinary horse just can't be compared with the sweat and blood BMW, thinking like this, Jin Daqian hurriedly returned to the palace and called a few guards all the way to catch up in the direction where Li Su went.

Li Su rode all the way to the Taoyuan, more than an hour to Taoyuan, the guards in front of the fortress saw that it was Li Su, they saluted, Li Su deliberately looked at the weapons in their hands when he entered, it seems that they have been disguised into weapons made in the steel mill, not to mention the horizontal knife, and the hands are also holding crossbows and compound bows.

There are more than 100 people with advanced guards. Even if a thousand people come, they can hold on for a while.

Li Su put down his horse and walked directly to the research institute. Now the construction of the research institute has been completed, the small village has been transformed into a living area, and the craftsmen have moved to the research institute to work, and various equipment and books are placed in the corresponding areas of the research institute.

Li Su went straight to Guo Xianyuan and Tong Yu's real room when he arrived at the research institute, one of these two people currently specializes in artillery and the other specializes in muskets, but what Li Su didn't expect was that this Guo Xianyuan actually had such attainments in firearms, and he studied it so quickly. Or rather, copied out.

"Bang!" As soon as Li Yu stepped into Guo Xianyuan's exclusive test site, he heard a gunshot, and Tong Yu was holding a long-pole weapon aimed at a target not far away.

After firing a shot, Guo Xianyuan, who was standing on the side, was about to run over to see how the target was, but when he caught a glimpse of Li Su, he kicked Tong Yu to remind him. Both of them walked towards Li Su.

"I heard that Guo Xianyuan developed a musket?" Li Su walked over and said directly.

Guo Xianyuan looked proud, took the musket from Tong Yu's hand and put it in front of Li Yu.

Li Su took the musket, this is indeed not the few model guns he brought from country M, because the barrel and butt and parts are brand new.

"Thanks to the machine tools sent by His Highness, it would not be possible to produce these suitable parts in a short time without those things." Guo Xianyuan explained.

Tong Nian nodded in agreement, "Yes." Your Highness, and the mold you mentioned, now that my cannon has made great progress, it is estimated that it will not be long before the design test can be carried out. ”

These machines are designed to produce small parts, which are sometimes the most important.

Li Yu looked at it for a while, and Guo Xianyuan made the gun that came out. It was a little different from the flint he had brought, and there was no flint on it. Instead, there is a needle-like striking device.

"Guo Xianyuan, which flint gun are you imitating?" Li Su was a little strange, but he vaguely felt that when he checked the information, he seemed to have seen a firearm very similar to this kind of gun, but he didn't remember it for a while.

Before Guo Xianyuan could speak, Tong Yu immediately explained: "Your Highness, originally this gun was imitated according to the rear-loading flint gun, but later Xianyuan appeared another strange gunpowder when he was refining the pill. ”

"Alchemy?" Li Su squinted at Guo Xianyuan with his eyes, this guy is unforgettable.

A layer of fine beads of sweat suddenly appeared on Guo Xianyuan's forehead, thinking that this Tong Yu was really a big mouth, and he couldn't tell him everything in the future, he rolled his eyes and said: "Your Highness, I only occasionally have nothing to do, and I will practice Dan for a while." ”

Li Su didn't blame him, alchemy was a legal and reasonable thing in this era after all, but he said: "The refined pill is not allowed to be eaten by others, otherwise it will be up to me to punish you." ”

"Yes, yes!" Guo Xianyuan nodded as if he had been amnestied.

Li Su then asked, "What kind of gunpowder is it?" ”

Guo Xianyuan took out a cylindrical object as long as a small finger from his pocket, and Li Yu looked at it carefully, it looked a bit like a firecracker.

"Your Highness, please stay away, this one doesn't put steel balls, but the power is not small." Guo Xianyuan put the "firecracker" in his hand and reminded.

Li Yu stood up as he said, Tong Yu didn't care, he and Guo Xianyuan had already done a few experiments and got used to it.

Seeing Li Yu standing aside, Guo Xianyuan grabbed the thing and slammed it to the ground, only to hear a "pop", a layer of fire rose on the ground, and then the smoke drifted out, and a thick smell of gunpowder filled the air.

Li Yu said in his heart, isn't this an enhanced version of the smashing gun? It's just that the ingredients of this cannon are silver salt, nitric acid, and sand, and this nitric acid Guo Xianyuan may still be able to mess around, but this silver salt is something he thinks is a little impossible, Li Su thought of something and said: "Did you use the kind of white crystals in the chemical room?" ”

"Your Highness, how do you know?" Guo Xianyuan was shocked.

Li Su somewhat understood, "Did you mix sulfur, carbon and this white crystal?" ”

Guo Xianyuan looked like a ghost, and nodded like a lost soul, "Yes, Your Highness." ”

"No wonder!" Li Su muttered in a low voice, these three things are mixed together, and it is the earliest fire cap born in the eighteenth century in the West, that is, acupuncture medicine, but I didn't expect this Guo Xianyuan to be crooked and accidentally made to make Zuò come out.

The white crystal is actually potassium chloride, and after Li Yu got out of the chemical room, he also bought some chemicals, and this potassium chloride is one of them.

The striking charge after the mixture of these three things, as long as the violent impact can be burned, thus igniting the delayed gunpowder, which is a sign of the rise of the breech gun, I didn't expect this Guo Xianyuan to directly complete the development of the cross-generation, and this is also thanks to the various cross-generation products provided by Li Yu.

Guo Xianyuan suddenly felt nervous that the thief was exposed in broad daylight, and said, "Your Highness, please forgive me!" ”

Li Su smiled and patted him on the shoulder, "What kind of crime do you have, not only are you not guilty, but you have also made great contributions." ”

"This ......" Guo Xianyuan was confused.

Li Su rewarded the two of them for the principle and function of the fire cap, and the two suddenly realized that they didn't expect this fire cap to be so important to firearms.

"However, this fire hat must be stored separately in another place, remember to handle it gently, otherwise there will be a big problem." Li Su admonished.

Knowing that this fire cap was so easy to catch fire and explode, the two of them secretly wiped a cold sweat, just now the two of them were still playing with this bullet that was not loaded with marbles next to a pile of gunpowder, thinking about almost losing their lives, the two of them were afraid for a while.

After talking about the fire cap, Li Su took a bullet from Guo Xianyuan's hand, this bullet is of course not the modern advanced copper-shelled bullet, but wrapped in paper similar to a firecracker, and the bullet is loaded with marbles to kill and injure.

On a whim, Li Su loaded the bullet from the breech, and then aimed at the target fifty meters away, and with a "bang" gunshot, Li Su's body leaned back slightly, and the power of the bullet was still satisfied.

Putting down the gun, he and the two walked to the target, searched for a long time, and found a bullet hole at the bottom of the target, which was no different from dragging the target, it seemed that this still needed training.

Then, in order to test the effective range of the rifle, Li Su asked Guo Xianyuan to shoot at a wall more than 100 meters away, in Li Su's opinion, the degree of loading of the rifle has been accelerated, not to mention, the power of the bullet has also been significantly strengthened, the effective range should be more than the effective range of the flint gun, but deliberately it is still impossible to compound the bow.

But this is also normal, after all, the range of the composite bow of modern technology has been greatly strengthened, it can be said that it has reached more than double the range of the current bow and arrow, but the same effective range, the strike gun can shoot through the plate armor, and the crossbow and bow and arrow cannot do it, which is why the bow and crossbow arrow will be gradually eliminated, and there is still a zài gap in penetration.

Holding the rifle, Guo Xianyuan designed at a distance of 50 meters, 70 meters, 100 meters, 120 meters, 150 meters, and 200 meters.

In order to compare, Li Yu called a guard who used a compound bow, but he didn't expect that even if it was a flat shot, the effective range of this compound bow would reach 150 meters, and if it was projectile at 45 degrees, it could reach about 400 meters.

Compared with the two, Guo Xianyuan couldn't help but be a little disappointed, he didn't expect that what he had spent so long making was not as good as a compound bow.

Li Su was already very satisfied with this result, the effective range of the flint gun was forty or fifty meters longer, he saw Guo Xianyuan's expression, and said with a smile: "Don't be discouraged, he is an old archer, and he can shoot so far with great strength, and the strike rifle you developed is much more powerful than this." ”

Li Su told the truth, the archer just now used a two-hundred-pound compound bow, which is extremely powerful, but not everyone has this kind of arm strength, and the power of the bow and arrow lies in long-distance projectile, and flat shooting is not as good as a shooting gun.