In order to ensure safe production, Li Hao has developed a set of shell production processes with the highest feasibility and safety, that is, first make the shell, embed the primer cup, and then knock the empty warhead into the shell to ensure its tightness, and then fill the warhead with a fine funnel gunpowder powder, use a blunt wood pestle, and finally install the warhead.

It is precisely for the sake of safe production that Li Hao used this kind of non-waterproof warhead, otherwise he could completely apply the principle of the ignition cup to the warhead, so that it could be waterproof, but in this way, the difficulty of production will increase, the danger will also increase, and the gains outweigh the losses.

The artillery and shells were all made, Li Hao's heart was excited, and he ordered the artillery and shells to be transported to the remote mountains, and sent people to thoroughly investigate the area within a radius of ten miles, and only after making sure that there was no one around, did he order the test of the cannon.

At last it was time for the excitement, and the cannon was there, and it had been reoriented, aimed at a small hill eight miles away, and the target was the big poplar tree on the top of the hill.

When setting such a long test distance, Li Hao was also a little worried in his heart, he didn't know if this artillery could hit so far, and it was from the bottom up, he was very worried.

No matter what mood he is in at the moment, only after trying the cannon, can he know the power of the artillery, as for whether the artillery is successful, whether it will explode, he is very confident in this, the power of the primer cup is limited, and there is a shell decompression, the first time the cannon is impossible to explode, so when the cannon is tested, he and a group of people are standing three feet behind the artillery, and they are still within the danger range.

Everyone present persuaded him, let him stand back, stand farther away, after all, his status is noble, not easy to take risks, Li Hao resolutely waved his hand to refuse, and ordered them not to persuade again, although everyone felt helpless, but they were very moved, especially that group of craftsmen, Li Hao's behavior was also a kind of trust in their craftsmanship, and some people were even so excited that they secretly wiped their tears.

This cannon is a simplified cannon, the ignition method is still hammering, I saw a craftsman wielding a hammer weighing seven or eight pounds, and suddenly hit a small cylinder that came out of the butt part of the artillery, "boom" a loud sound, a concussive air flow radiated out, and the craftsman who was waving was shocked back several steps, and the people around ten zhang away were also blown by the air current, although they covered their ears, but the huge sound still frightened them.

Li Hao's eyes kept staring at the cannonball, his eyesight was outstanding, and he saw that the cannonball quickly drew an arc, and flew to the top of the mountain in a moment, but ...... Over the hill......

After a second or two, the ground trembled slightly, and after a few seconds, an explosion came, and the ground trembled from such a distance, which showed that the power of this cannon was really amazing.

"Let's go! Check it out! Li Hao gave an order, leaving some people here to protect the cannon, while Li Hao led the others towards the explosion site.

When I arrived at the explosion site, I saw a huge crater on the ground, the soil in the pit was still steaming, and there was a pungent smell of gunpowder smoke in the air.

Looking at this big pit, the guards were shocked, what kind of power is this Nima, it is like a god, it has long exceeded their cognition, but the group of craftsmen is relatively calm, because they have tried small explosives explosions, and have seen the power of explosives, but the results of such a large explosion, they have seen it for the first time.

Looking at such a big pit, Li Hao was very excited, successful, and very powerful, because he deliberately lengthened the shell, just to increase the power, and the range of this shell seems to be quite far, definitely more than ten miles, exceeding his expectations, but now there is another problem, that is, the recoil is large, he wants to use these cannons on the ship, he doesn't want to fire every time, the air flow in the artillery cabin trembles, and he doesn't want the artillery cabin to be destroyed because of the huge recoil, after all, there are twenty or thirty cannons in the artillery fire cabin, With so many cannons fired at once, such a powerful recoil will definitely blow up the cannon fire bay, and these problems need to be solved.

The most direct way to reduce recoil is to reduce the bottom fire cup, which will lose some range, but as long as the explosive power of the cannon is not sacrificed, the ideal range in Li Hao's heart is ten miles. In addition, it is necessary to increase the tightness of the back cover of the cannon, this problem is thrown to Lu Zhi and his nephew, this time in order to make the cannon, Li Hao specially let Lu Zhi come to Qiongnan, he also believes in the ability of their uncle and nephew.

Li Hao told Lu Zhi about the problem, and Lu Zhi immediately patted his chest and assured that within ten days, the improvement would be completed.

Ten days is not a long time, Li Hao can afford to wait, after going back, Lu Zhi immediately gathered all the craftsmen and began to discuss the improvement plan of artillery.

Ten days passed quietly, when Li Hao saw the cannon again, he was shocked, which reminded him of the cannon in the anti-Japanese drama, the kind of cannon that shoots a cannon and shrinks the barrel back, which often appears in anti-Japanese dramas, yes, Lu Zhi actually modified the cannon body and added four huge springs to reduce the recoil of the cannon.

Lu Zhi really brought him a big surprise, according to Lu Zhi's report, the tightness of the back cover has reached a perfect level, the recoil problem has also been solved, the primer cup has not been changed, that is, the range has not been cut.

Li Hao immediately ordered to test the cannon again, it was the same place as the last test gun, but this time, it was fired on the flat ground, and he wanted to see how far his cannon could hit.

With a loud bang, the shell flew out, the barrel suddenly retracted, and then it was bounced back by the elastic force of the spring, the recoil was completely canceled out, the back cover was tight, and there was no more concussive airflow, perfect.

The ground trembled slightly, the shell landed and exploded, and within a few seconds, the sound of explosion came, Li Hao took people to check excitedly again, carefully measured the distance along the way, and finally measured that the longest range of this cannon was 13.5 miles.

Li Hao was excited for a long time, called Lu Zhi's uncle and nephew over, and said: "Lu Zhi, build another hundred shells, after you finish it, you will bring people to fire a hundred times in a row, test the toughness of the cannon body, if this level is also passed, come and report to this king, this king will order you to produce in large quantities." ”

"Yes!" Lu Zhi is very confident in the toughness of the cannon body, after all, it is the artillery that he personally supervised, and he knows it best, but since Li Hao wants to test it, this step cannot be saved, after all, safety first.

Li Hao waited patiently for ten days, Lu Zhi came to the Qiongnan Palace, and saw Li Hao in the study, Lu Zhi reported that the one hundred firing tests had been completed, and the gun body was completely unusual, and there was no danger of exploding.

"Great!" Li Hao was so excited when he heard this that he slapped the table and got up, after this test, the cannon was truly perfect, Li Hao immediately ordered, "You will take your craftsmen back tomorrow to beg, bring back all the copied drawings, and start to build cannons with the same specifications, first build a hundred, pay attention, you must pay attention to safety, cannons are not shipbuilding, once an explosion occurs, it will be devastating." ”

Lu Zhi saluted solemnly: "Yes, Lord Wang, the villain remembers, safety first." ”

"Well, I'm still very relieved that you're doing things." Li Hao smiled and patted him on the shoulder, and said, "The metallurgical plant over there in Liuqiu, the blast furnace is too small, you build a big one, this time you design the drawings yourself, and in the future, the industrial part of Liuqiu will be handed over to you to take care of, and you will be the head of Liuqiu industry appointed by me." ”

Lu Zhi trembled with excitement when he heard this, the industrial director of the entire Liuqiu has huge power, and he also carries the heavy responsibility of the rise and fall of the entire Liuqiu development, he never thought of this kind of opportunity in his life, and suddenly tears welled up in his eyes, and said: "Thank you, Lord Wang, villain...... The villain is willing to serve the prince and serve the dogs and horses! ”

"Okay, just put these words in your stomach, and this king knows that you are faithful." Li Hao smiled and said, "That's right, I heard that you married a daughter-in-law over there and gave birth to two sons, and I don't know if you will be the king, it's too unkind." ”

Lu Zhi hurriedly said: "The prince has a lot of opportunities, how dare you bother the prince with this little bit of things about the villain." ”

"When you say that, you see the outside." Li Hao said, "I don't care, you have time to take another side room, and then you must hold a banquet and invite this king once." ”

Lu Zhiyan was stunned for a while, this request is really ...... It sounded a bit of a jerk, but he liked it, and immediately nodded his head in agreement.

Sent away Lu Zhi, Li Hao slowly paced around in the study, after coming to Qiongnan, things are really getting smoother and smoother, why, because no one is against him, it's like when he was in Chang'an, someone always blocked himself.

Li Hao can imagine that when he has a hundred cannons, who else is his opponent in the whole world, even if he wants to rebel, Li Shimin can do anything, of course, he is not that kind of person, he has never had the idea of being an emperor, what is good about being an emperor, he works hard all day long, wants to be a good emperor, lives twenty years less, wants to be a faint king, just wait to be scolded, and after death, he will be scolded by future generations.

Li Hao doesn't want any ultimate power in the world, he just wants to be happy, of course, in this kind of troubled times, it is best to have his own power to protect himself, so that he can truly be free.

In the following days, Li Hao opened a school in Qiongnan, usually teaching students, teaching science, practicing martial arts when he has nothing to do, or teasing a few of his children, little Li Tu is already four years old, it is a fun time, if having a child is not for fun, it is meaningless, sometimes, Li Hao's way of teasing his son to play, really makes Turandot unacceptable, she has never seen a child's father with his child jumping around in the pond on the road, making it full of sewage.

Although Li Hao loves to tease Li Tu very much, but when he should be strict, he is still very strict, educating children, sloppy, playing is the nature of children, but he can't develop his pampered temperament, so although Li Tu loves to play with Li Hao, he is also most afraid of Li Hao, as long as Li Hao colds his face, he will be obedient immediately, this ability to act is very similar to Li Hao.