As Dong Zhuo’s son-in-law, he must take the lead in everything.

Niu was supplemented by three thousand cavalry, five thousand infantry, and more than one thousand logistics personnel, and rushed to garrison Shanglinyuan.

Liu Bei crossed Mengjin Ferry and went straight to Shanglinyuan. With 2,000 cavalry and 2,000 infantry, he surrounded Niu Fu's troops from three sides.

After Xu You defeated Yuan Shu, Zhang Fei from the south of Dongdu went around to the west of Dongdu that night and blocked Niu Fu behind him.

At dawn, Liu Bei issued an ultimatum and ordered Niu Fu to surrender his weapons.

Niu Fu already knew that his father-in-law was coming, so he definitely couldn't agree to it, so he ordered to hold on to the camp and planned to hold off until reinforcements arrived.

"Since Old Dong is coming to Dongdu, the striker should arrive today and capture Niu Fu first!"

As a veteran general, Niu Fu's camp was very solid, with walls, ditches, arrow towers, antlers, twigs and horse pits, everything was indispensable.

Both sides have no plans to attack Luoyang City, so neither side has brought or built even a single catapult.

The sun is three high, the clouds are clear and the wind is light, which is a good weather for fighting.

The Yongzhou Army slowly approached, and Niu Fu on the wall pretended to be relaxed and chatted with the generals.

"The Art of War says, attack in five ways. The Yongzhou natives only number five or six thousand, and most of them are cavalry. I want to see how they attack?"

Normally, no one would do this, but Mr. Hou is not a normal person.

Two hundred and fifty steps away from the Niufu camp, the Yongzhou army stopped advancing, and a four-horse cart in the queue continued to advance fifty steps.

Later, more than twenty foot soldiers in red followed them carrying seven or eight large wooden boxes. Some led the horses away, some fixed the frame, and some opened the wooden boxes.

When the infantrymen lifted off the tung oil canvas covering the carriage frame, a huge dark bronze object appeared in front of the Liangzhou soldiers.

Two hundred steps, about three hundred meters, no matter how large an object is, it will shrink sharply and become invisible.

Niu Fu pointed to the cart and asked, "What's on the cart?"

No one knows me, so I can only guess.

After hesitating for a long time, someone said: "Maybe it's a magic weapon like a bell or tripod..."

It sounds really fresh. Are there still people who use magical weapons in battles?

Niu Fu was very doubtful, but in the end, attacking a city would rely on swords and guns and human lives.

Therefore, we still caution the left and right to pay close attention to the enemy situation in other directions.

The Yongzhou troops in the four directions seemed to have received unified instructions and all stopped at two hundred steps.

Niu Fu focused his attention on the frame in front of him again.

More than twenty foot soldiers in red were so busy that it was difficult to understand what they were doing.

Under the confused eyes of the Liangzhou soldiers, Zhao Yun, a trainee artilleryman from the Yongzhou Artillery Camp, was busy adjusting the height of the muzzle.

It took a total of four years to gather nearly a hundred skilled craftsmen from Yongyou and Youzhou, spending countless money and food, and a bronze cannon weighing 1,800 kilograms, the Thunder God Type 1 bronze cannon, was successfully cast in early January this year.

In fact, this silly and thick artillery is far from the requirements of the Marquis, but the smelting technology is not something that can be achieved overnight.

Of course, the Yongzhou Arsenal is currently further optimizing and trying to cast smaller and lighter artillery.

From nothing to something, from something to excellence, you won’t become fat with just one bite.

A month ago, Zhao Yun, who successfully passed the story of Bi Ma Wen, was rotated to the artillery camp as a trainee artilleryman.

Because of frequent exchanges with Zhang Mei, Zhao Yun's arithmetic ability has been significantly improved, and he is responsible for calculating and adjusting the muzzle angle.

A simple and innocent young man, after a month, he became more and more proficient in cannon shooting, but his outlook on life was completely subverted.

According to the visual inspection, the distance between the camp and the camp was two hundred steps. According to the artillery manual, the muzzle elevation was set at ten degrees for the best bombardment effect.

The maximum elevation angle of the gun mount was set to forty-five degrees, with steps every five degrees. Zhao Yun immediately raised the knob.

Zhao Yun loudly reported to the artillery captain behind him: "The muzzle elevation is at the second gear."

The captain immediately ordered: "Charge!"

The charger puts the paper fixed powder package into the muzzle, uses the push rod to send it to the bottom of the barrel, and then plunges the fuse into the gunpowder package from the eye at the top of the rear of the barrel.

"The gunpowder is ready!"

The captain shouted again: "Reload!"

The bomb loader held a dark iron ball in both hands and put it in from the muzzle, and soon heard a dull impact.

"Reloading completed!"

Zhao Yun heard that just a pack of gunpowder and an iron ball shell were worth at least ten taels of silver.

In other words, one shot can feed a family of five for a year.

What a luxury.

"Clear the shooting range."

All personnel retreated behind the artillery.

At this time, a flag bearer raised a red triangular flag.

"Light the fire!"

The flag bearer immediately waved the red flag, indicating the firing.

Although there is only one cannon now, considering that there will be more cannons and even gun groups in the future, semaphores are used in key links, which is convenient and efficient.

The artilleryman near the rear of the gun, after lighting the fuse with a fire stick, quickly returned to the queue and covered his ears with his hands like everyone else.

The sparking fuse quickly got into the eye of the fire.

One breath, two breaths...

"Boom!"

In the nearly closed chamber, the fixed gunpowder package was ignited and then exploded, giving the shell extremely strong kinetic energy.

Except for the white smoke rising from the muzzle, no one could clearly see the trajectory of the cannon after it ejected from the chamber.

Thor-1 artillery, the first actual combat artillery shell was successfully launched!

The huge recoil also made the gun mount creak. Fortunately, the experienced gun battalion sergeant fixed it properly, otherwise the gun barrel would definitely roll out.

These experiences were gained at the cost of seven or eight lives and the disability of more than ten people.

Niu Fu, who knew nothing about it, no longer paid attention to the frame of the carriage, but carefully observed the lineup of the Yongzhou Army.

When the bronze muzzle flashed, he heard a loud bang in his ears before he could ask.

"Crack!"

And a series of screams: "Ah! Ah! Ah..."

Niu Fu looked around and soon discovered that there was a big hole in the wall on the left side.

Among the soldiers queuing up behind the village wall, a bloody passage appeared. Broken limbs and broken arms were flying in the passage, and several mutilated corpses had long since passed away.

What the hell?

Niu Fu didn't understand what happened, and watched the scene where the stone bullets like trebuchets penetrated the village wall and rolled past.

There are no catapults in Konoda’s position.

When his eyes fell on the bronze gun mount, a sudden inspiration came to him.

Could it be that that thing is a new type of trebuchet?

Niu Fu was thinking wildly and came up with strange ideas. The first artillery barracks had already performed their duties. They used a wiper to clean up the gunpowder residue attached to the inner wall of the gun barrel and started over again according to the firing process.

Because they had practiced for several months, all the artillerymen became perfect with practice. Soon, the red flag was waved again and the second artillery fire was successfully launched.

"Crack!"

The wall on the right side was penetrated, and the soldiers also suffered casualties.

After encountering inexplicable blows one after another, many soldiers began to panic.

But this time, Niu Fu was 70% to 80% sure that the opponent was attacking through an object attached to the car.

Witchcraft!

It must be a witchcraft!

Easily breaking through the stronghold wall and killing people invisible, what else is it if it’s not a magic method?

"Spread out, all spread out!"

Niu Fu shouted loudly, saying that since he could not resist the evil spell, he could only hope to reduce his own losses.

"The muzzle calibration is completed!"

After two shellings, Zhao Yun had locked the gate of the opposite camp.

A moment later, the red flag was waved three times, and the cannonball came out of the barrel again, following an arc with a sharp whistling sound, and accurately hit the camp gate.

"Pa!"

A hole the size of a head was smashed out of the thick door, and sawdust flew everywhere.

Niu Fu and the generals standing at the top of the gate felt a violent tremor.

How powerful is this?

Sure enough, right in the middle of the camp gate, Zhao Yun put down his telescope and suddenly had an idea.

"Report, request to target the top of the opponent's camp gate and shoot!"

The captain looked over with his binoculars and found a group of generals at the top of the camp gate.

He smiled and asked: "How sure are you?"

Zhao Yun knew very well that the height of the camp gate was only two feet, but if it was placed at a distance of two hundred steps, the muzzle would definitely hit higher if the muzzle was raised by one level.

You can only manually fine-tune it based on feeling, and use wood chips to slightly raise the muzzle. It depends on Zhao Yun's feeling.

"Fifty percent."

"Fifty percent?" The captain laughed and said proudly: "Then fire two shots, it's 100 percent, let's do it!"

Zhao Yun was speechless.

Artillery Captain Gao Jin and Gao Wenzhong were from the Bohai Sea. He had a bold personality and was very good at playing with a two-pointed three-edged sword.

At first, I followed Master Zhang. Later, when setting up the artillery battalion, because of Master Zhang’s recommendation, I got the position of chief officer of the new branch.

As a cavalry general, Gao Jin is not very outstanding, and cannot be compared with Zhang Liao and Zhang He.

Because Mr. Zhang once heard his elder brother say: "In the future, artillery will become the key to winning or losing wars."

So he found another way and targeted the artillery camp.

As far as the current Yongzhou Army is concerned, apart from the navy, the artillery battalion has the most knowledge.

Every artillery officer, like a sailor, must participate in training and can only take up his post after passing the test.

The cannon bore was cleaned, charged and loaded, and Zhao Yun stuffed a wood chip under the cannon bore.

"Calibration completed!"
Chapter completed!