Of course, Cao Cao never thought that Lu Ning's sharpshooter was not using a bow, but a crossbow; and this kind of crossbow is a crossbow with high technical content, which uses a lot of technical principles and knowledge from later generations. This is not very difficult for Lu Kong, a college student in science and engineering, and coupled with Ma Majun's superpowers.

Yu Jin said: "Lord, those magical shooting team players use not bows, but crossbows."

Although Xiahou Yuan and Lu Ning's army had fought, they also knew that Lu Ning's soldiers generally used crossbows. Although the range was farther than that of bows and arrows, it was impossible to reach such a farther distance!

Xun You said: "Lord, I have visited various crossbows in the jurisdiction of Lu Ning. There are some crossbows and crossbow beds under Lu Ning's rule, and they are not sold to the public. I only know that the performance is excellent and the specific lethality is unclear. Later, I heard Wen Ruo that the crossbows under Lu Ning were indeed very long and there were also things like clairvoyance installed."

Cao Cao said: "Let's talk about it, there are too many traps in Guandu. If we clean it up like this, we will have to suffer too much casualties, and the speed is too slow. It will be troublesome if we can't attack Guandu in a short period of time. Once Jinyang sends reinforcements, we will not think about the south of Guandu."

Cao Cao knew in his heart that Lu Ning was not here, and Lu Ning's men did not dare to send troops easily, so he could only let the local people guard against the enemy. Cao Cao also learned from the secret spies in Jinyang that the civil and military officials under Lu Ning were arguing about sending troops all day long.

Seeing that no one was talking, Liu Ye stepped forward and walked forward and said, "Lord, why not use the thunder cart to drive the road, which can destroy most of the various mechanism traps set up by Lu Ning."

When Cao Cao heard this, it was indeed a good idea and immediately laughed: "Ziyang, let the Pili chariot show its power in the afternoon and completely destroy the trap of the mechanism ahead."

Cao Cao spent a lot of money this time and brought hundreds of thunderbolt chariots to attack Guandu, which was also considered a secret weapon in Cao Cao's hands; but what Cao Cao didn't know was that the catapult chariot in Lu Ning's hand was much stronger than the thunderbolt chariots made by Liu Ye, and it was not a weapon of the same level at all.

In the afternoon, Cao Cao's army continued to attack Guandu, and hundreds of thunderbolt cars fired together. The formation was indeed scary. The original mechanism traps were destroyed one by one, which greatly boosted morale. Cao Cao's soldiers shouted loudly.

When Hao Zhao, who was standing on the city wall, saw it, he smiled faintly on his face, and knew in his heart that there was nothing he could do. It was impossible to destroy Cao's thunder chariot at such a long distance, and it was impossible to send troops out of the city; one was that the troops were limited, and the other was that there were a large number of mechanism traps, which was not conducive to sending troops.

The guard next to him said, "General Hao, has the mechanism trap we set up been destroyed like this?"

Hao Zhao observed in his glasses for a while and said, "Don't worry! The range of Cao's thunderbolt chariot is less than 150 steps. It is not that easy to destroy the mechanism trap within 500 meters. As long as Cao's thunderbolt chariot enters our range, he will be waiting to die."

The artillery lieutenant said, "General He, we have three artillery pieces. We want to use artillery to destroy Cao's thunder chariot?"

Hao Zhao thought for a while and said, "Our number of artillery is too small, it is a secret weapon and cannot be used now. Although it can scare the Cao army half to death and cause chaos in the Cao army, we cannot send troops at this time. We should wait until the Cao army helps us clean up the road before using artillery, so that we can solve the Cao army in one fell swoop."

Although the range of artillery in Lu Ning's army can reach about 2,000 meters, its lethality is limited and the number is too small. A large number of artillery are installed on warships. The production of artillery is not easy. It cannot be produced at once, so it cannot be popularized. It can only be used at critical moments.

Seeing that his thunder chariot was powerful and could destroy various mechanism traps in front of him without soldiers coming forward, Cao Cao was really happy and immediately laughed and said, "I admire Ziyang's gold for a hundred kilograms."

After hearing this, Liu Ye immediately said, "Thank you for your reward, lord."

Cao's army had a thunder chariot leading the way, and the speed of advance was very fast. It advanced more than 100 meters in less than half an hour; but then we encountered trouble.

Hao Zhao on the city wall saw Cao's thunderbolt chariot pushing up and entering the range of the crossbow bed, and immediately ordered the crossbow bed to attack, specifically targeting Cao's thunderbolt chariot, and some rockets; the sniper killed the soldiers next to Cao's thunderbolt chariot.

The Cao army's thunder chariot was restricted, and the soldiers operating the thunder chariot were also attacked, which greatly reduced the power of the Cao army's thunder chariot; the Cao army's soldiers were threatened with death and had to keep putting out fires; the Cao army's thunder chariot was shot by a crossbow bed, and it was easily scrapped and became a pile of waste.

It took Cao's army only less than half an hour to 100 meters in the first 100 meters, but it took Cao's army nearly an hour to 100 meters in the back and lost more than 30 thunderbolt vehicles. It can be seen that the battle was very fierce and miserable.

The Cao army continued to advance slowly under the bombing of the pili chariot. After advancing to 300 meters, the Cao army could no longer advance; at this time, the Cao army's pili chariot entered the attack range of the catapult car on the wall of Hao Zhao.

At the order of Hao Zhao, nearly a hundred catapults on the Guandu city wall showed their power. In just a moment, hundreds of thunderbolts were destroyed. Cao's soldiers were also shocked by the powerful catapults. Although not many Cao's soldiers died, those who were hit by big rocks were either splashing their brains or broken arms or legs. Even if they were not killed by the stones, they were definitely disabled.

The soldiers of Lu Ning on the city wall shouted loudly, while the soldiers of Cao's army were depressed and fled backwards. At this time, Yu Jin had no choice. Faced with such a fierce attack, no matter how many soldiers were killed, it would not be of much effect.

Cao Cao's face turned pale, and hundreds of thunderbolt chariots were wiped out in a moment. Without the thunderbolt chariots leading the way, the strong attack required soldiers to fill the pit. Cao Cao knew very well in his heart.

Xun You said carefully: "Lord, let's stop the army by ringing the gold!"

Cao Cao nodded, knowing that it would be meaningless to attack again, and he would only let the soldiers die in vain.

After Cao Cao led his men back to the Central Army camp, he immediately said: "Ziyang, let the craftsmen make thunder chariots overnight."

The Pili carts made by Liu Ye are indeed very simple. They are all made of wood and are not very complicated. A large number of craftsmen can make dozens of them in one night. Cao Cao knew this in his heart. After all, Cao Cao had also seen the production process of Pili carts.

Liu Ye said: "Lord, I'll make arrangements now."

Xu You just saw Lao Cao rewarding Liu Ye, and he felt very jealous. After seeing Liu Ye leave, he immediately spoke: "Lord, our thunderbolt car has a very close range. Even if there are many thunderbolt cars, it won't work? Then Lu Ning's thunderbolt car has a longer range. He should think of other ways and can't rely on the thunderbolt car."

When Cao Cao heard this, he said, "Ziyuan, do you have any good solutions?"

Xu You said: "Lord, when Yuan Shao was attacking Huguan, he encountered this situation. Lu Ning's catapult cart was indeed very powerful. Later, he nailed it to a wooden stand with cowhide and the soldiers filled it under it. Of course, it also cost tens of thousands of soldiers to completely clear out various mechanism traps and moats."

Cao Hong said: "What if Lu Ningjun uses rockets?"

Xu You said: "There is a layer of sand on it so that it can prevent fire."

Xiahou Dun said: "One layer of cowhide is not enough. The stones thrown by Lu Ning's catapult are very large and weigh dozens of kilograms. If they are smashed, the cowhide will collapse. How can you defend against it?"

Xu You said: "Of course, the cowhide needs to be reinforced with wooden boards, so that it will not be easily smashed."

Cao Hong smiled bitterly when he heard this, "How big should that thing be? Can it be lifted?"

After hearing this, Cao Cao was feasible and immediately said: "Ziyuan, you are responsible for this matter. Start handling it immediately. I will see it tomorrow."

Xu You was stunned for a moment when he heard this, and then immediately said, "Lord, I'll do it right away." Xu You cursed in his heart, this old Cao is really good. He has to do it overnight. The wood is not a problem, but where can I find this cowhide?
Chapter completed!