"Take a closer look, did this shell hit?" Zhu Huan said with a smile.

"Lord Wang, this cannon is clearly not ......" Lu Yun's voice paused: "I was hit, but I didn't hit it completely." ”

From a distance, the willow tree eight hundred paces away was intact, but a poplar tree six or seven steps north of it was broken by the waist!

"It's just missed, but this cannonball can really hit 800 paces away!" Lu Yun exclaimed.

After Wu Qi confirmed that the cannonball could break the waist of the poplar tree eight hundred steps away, he couldn't help but burst into a foul mouth: "My day, what kind of magic weapon is this!" ”

This also made Wu Qi shudder, imagine it: the two armies are fighting, you are the commander of the first army, and you are the commander of the battle eight hundred steps away, and when you inadvertently look at the sky, you find that there is an iron ball, and when you think about how this ball is so big and round and flies so fast, suddenly this iron ball "chirp" falls on your face, and it will directly blow up your brain!

What a horrible thing this is!

Even if you know the range of this shell, then you have to move the battalion to a place a thousand steps away from this artillery, and you also have to send an advance team to find out the location of the opponent's artillery battalion in a deadly way, so as to prevent the opponent's artillery battalion from pulling the position within the firing range, so as to change the coordinates of your own battalion.

The battlefield is changing rapidly, others are thinking about how to deploy strategies, but you are thinking, "Mom, let's compare, why did Zhu Huan's artillery battalion move forward dozens of steps?" ”

Zhu Huan stepped forward to observe the artillery, frowned and said, "It's not a problem with the front sight, it's a problem with the main gunner." ”

When the gunner heard this, he bowed his head in shame.

"Qi Jiguang?"

"The minister is here!"

Zhu Huan thought for a moment and said: "You pull this cannon back, go to the musketeers and pick out one hundred and fifty gunners, fifty main gunners, and one hundred deputies, take turns to train, don't worry about the problem of not enough shells, even if it is a heap, you have to raise the gunners' crosshairs." ”

"No!" Qi Jiguang's face couldn't help but show an excited smile.

"Lu Yun, you come with me." Zhu Huan no longer studied the cannon, but turned around and walked to another place.

Lu Yun followed, knowing that Zhu Huan had something to tell him.

The two talked while strolling around the camp.

"How long will it take you to build this kind of cannon?" Zhu Huan asked.

"With this experience, it will be easy to build in the future, and it will take about three days to build one." Lu Yun replied.

One cannon in three days is already rare in this purely manual situation. This has to be a skilled craftsman in the Ministry of Industry, if you change to an ordinary craftsman, you don't want to see the shadow of artillery in less than half a month's work.

"It's too long, not so much time." Zhu Huan frowned.

Lu Yun was a little embarrassed: "Lord Wang, this cannon barrel is hammered out by craftsmen one by one, if the time is reduced, the quality of the cannon cannot be guaranteed." ”

Zhu Huan thought for a while and asked, "Then don't use forging, use the casting method instead." ”

Forging refers to the use of hammering and other methods to make a metal material in a malleable state into a workpiece with a certain shape and size, and change its physical properties. Casting refers to the processing method of melting metal into liquid, pouring it into a mold, cooling, solidifying, and cleaning to obtain a casting of the desired shape. It can be made into various kinds of objects with complex shapes.

In general, forging can eliminate defects such as loose casting state generated by metal in the smelting process, optimize the microstructure, and at the same time, due to the preservation of complete metal streamlines, the mechanical properties of forgings are generally better than castings of the same material. But casting is faster than forging in terms of efficiency, especially in ancient times, when workers forged objects with a hammer.

"Casting words...... It's not impossible, but it's definitely not as durable as forged, and Xia Guan doesn't have much experience in casting. Lu Yun hesitated for a moment and said.

"No problem, this king will tell you the specific process." Zhu Huan said: "You can use the jade sand to make the mold and the inner core of the model, put the core into the cavity, and close the upper and lower sand boxes." Then the prepared copper water is injected from the sand box gate. Wait until the barrel has solidified and cooled, and then clean the sand box. After that, there is no need for the king to say more, just let the craftsmen polish the barrel embryo. ”

"The prince is really knowledgeable."

"Don't put aside the rainbow fart with this king here, if things mess up, this king will take you for the blame first."

"Don't worry, Lu Yun will do his best!"

Zhu Huan thought for a while, and then said: "Although this artillery is powerful, its shortcomings are also obvious. ”

"What does the prince want to say?"

"It's too slow." Zhu Huan said: "According to the king's will, directly transform the carriage transporting artillery into a gun carriage!" Three horses pull a cannon, and it just so happens that the gunner configuration of this gun is also three. It can be used now, which saves the time of deploying the battery and can also reduce the transportation time. ”

Lu Yun pondered for a while and nodded: "This is not difficult. ”

"That's okay, the arsenal will be handed over to you, fifty artillery pieces must be built, not one less, artillery shells must also be made, solid shells, blasting shells, and configured black powder, you can make more, but you must not make less, you can ask Qi Jiguang for the specific demand." Zhu Huan patted Lu Yun's shoulder and began to feed the sugar: "This thing is done, what you want, this king will give you." If you want to go back to the Ministry of Works, when the time comes, the king will personally go to greet the prison country, how can I get you a left servant of the Ministry of Works. If you are willing to stay in the king's Qi Palace, the specific official position of the king may not be able to give you anything, but the golden beauty, give what you want. ”

Lu Yun said solemnly: "Lord, the lower officials are willing to stay in the palace, but what the lower officials want is not a golden beauty, but because the lower officials are interested in this gunpowder gun when they are young." It's not a secret, even if the prince wants to send Lu back to the Ministry of Industry, the lower officials are still unwilling. ”

Zhu Huan bowed his head with relief: "Don't worry, stay in this king's Qi Wangfu, what this king can give you is definitely no less than his Ministry of Works." ”

Lu Yun didn't know that what he said just now saved his life.

Zhu Huan's arsenal only needs people to come in alive, not to get out alive.

Lu Yun built the artillery, and the drawings of this artillery had been carved in his mind, and Zhu Huan would never allow such a person to get out of his control.

If Lu Yun doesn't agree to stay here, he, Lu Shilang, I'm afraid he will become Lu Shulang.

Even with him, he was silenced forever, as well as more than 70 craftsmen from the Ministry of Works.

"Lord Wang, this cannon is not famous yet, you can give it a name." Lu Yun didn't know that he had escaped a catastrophe, so he first asked Zhu Huan to give the artillery a name.

"Give the name ......" Zhu Huan thought for a while and said: "The sound is like thunder, and the momentum is like a tiger's roar, so let's call it 'Thunder Cannon'." ”

Lu Yun applauded and touted: "Good name, just listening to the name is domineering and mighty!" ”