More than twenty stone projectiles flew out of the city wall, roaring in the air and smashing into the steppe cavalry, which had not yet completely calmed down.

The stone projectile flew out of the city wall for more than 100 meters and fell, rolled for nearly 20 meters, and the grassland cavalry at the front fell on their backs and fled backwards in embarrassment.

Zhang Yuan's strong attack was the first to strike, and he did defeat the grassland cavalry again.

The originally high morale and noisy and strange grassland cavalry thought that they could easily ravage each other with stronger bows and arrows and unprecedented terrifying return cannons, but the cruel reality really hit them, and before they had time to exert their might, they were ravaged by the other party.

They fled back, and then they were stunned, and the other people who did not come forward were confused, and looked stupidly at Xihe City, which was cheering not far in front of them, and they didn't know what to do for a while, and their leader was also dumbfounded, forgetting their duties.

Although there were not many casualties in the rounds, they also made them lose their previous arrogance, and their morale was low and they even had some period of action.

Peng's face is hard to see, he is angry, hole cards, if Zhang Yuan takes out all the hole cards, he is nothing, dead is dead, demoralization can not play another day or leave is, anyway, has tried out the opponent's hole cards, but Zhang Yuan actually took the bad cards to play.

The trebuchet is indeed a hole card in some places, a trump card-like thing, but if it is compared with a return cannon that can play more than 300 meters, it is not a little bit worse.

But a bad card also gave Zhang Yuan the effect of playing a hole card, isn't this cheating him?

The feeling of aggrieved made him angry, but he had no choice but to withdraw the cavalry and ask his craftsmen to speed up the assembly of the return cannon, even if he left him, he also wanted to give Zhang Yuan some good looks and find some face.

"All trebuchets are recovered!"

Zhang Yuan stood on the city wall, did not cheer like others, he looked at the grassland tribe retreating to five hundred meters away with an expressionless face, a little disappointed in his heart, but it was also in his expectation, although a strong attack hit the morale of the other party, but in the face of the return artillery he had no way, the distance of three hundred meters is too far, except for more than twenty large bed crossbows can shoot more than a thousand meters, the rest to three hundred meters is powerless.

Although the return cannon can be used to fight back with crossbows and other counterattacks, compared to the power of the return cannon, it is looking for death.

Therefore, Zhang Yuan would not plan to use the extremely precious crossbow to consume each other's return cannon unless he had to.

"It would be nice if we grabbed the manufacturing method of the return cannon!" Zhang Yuan's unquenchable desire for the return cannon, the product of the development of the trebuchet to the extreme, the return cannon. Of course, if the imperial court issued a waist crossbow that could shoot more than 500 meters according to the Qin crossbow, then Zhang Yuan would wake up laughing if he fell asleep.

The maximum pulling force of the rowing machine-like waist crossbow can reach 370 kg, which is simply incredible, and the effective range is more than 500 meters, but unfortunately it is rarely used after the Han Dynasty because it is not as practical as the arm and pedal tension. But it is not an exaggeration to call the waist crossbow an epoch-making king of cold weapons.

"General, the Peerless Battalion, the Death Battalion is ready to standby!!"

The two sides were at such a stalemate, taking advantage of this opportunity to hide under the city wall or on the battlements of the Xihe soldiers, drinking porridge and eating pickles, looking outside the city from time to time, and only relieved when they saw that the other party did not move.

And Zhang Yuan also held a bowl of porridge at this time, until he heard the words of the herald, drank the remaining porridge in one go, ate a mouthful of pickles, handed the bowl to the guard next to him, and said: "Hu Chu, this place will be handed over to you, if the other party is attacking the city or the situation is critical, it is allowed to use a large bed crossbow!" ”

The large bed crossbow is also regarded as the trump card of Xihe Town, only more than 20 if the key parts are damaged, it will be very troublesome to repair, if it is not sent to the time is only half a month, the time is too short and urgent, the skilled craftsmen of the Western Han Dynasty specially added a lot of secret precision mechanisms and many special metals required for key parts, so that the craftsmen of Xihe Town have not thoroughly figured out the method of creating large bed crossbows, and the imitation is less than half the power of the original, and they don't have to be so troublesome.

Zhang Yuan believes that it is not difficult to decipher the bed crossbow in the current research and development of Liliang in the small city of Yixihe, but it is indeed difficult to catch up with the outbreak of the Yuan and Han Wars, because metal is not a machine part, and it can be deduced by relying on a real computer, but metal is different.

The metal in "Expedition" is very different from reality, such as Xuan Tie, Xuantie and the like, which are different from the metal in reality, there are not necessarily metals in reality, but there are many here that are not in reality, there are many types of high and low levels, and there are many extremely rare ones, so if you want to deduce the ratio method of metal, it is not a matter of time to have a supercomputer.

With an order, Zhang Yuan walked along the outer city to the northern city.

At this time, the Peng Spleen outside the city had already assembled a return cannon, Peng Spleen couldn't wait to let the return cannon that had not yet been debugged directly use Xihe Town as a target for debugging, and the huge return cannon was pushed by dozens of people to three hundred meters away from the city, Hu Chu immediately ordered the resting crossbow archers to give the other party another round of arrows.

"Steady, ready to drop the bomb!"

The commander of the return cannon was Buber, a man of the Yuan Dynasty, who was the son of Yismayin, who invented the return cannon together with Ah Lao Wading, a native of Mufali in the Western Regions.

Since fighting with the Han Dynasty, the Yuan Dynasty was more afraid of the Han Dynasty than the Qin and Tang dynasties.

"Bang bang ............!!"

The sound of arrows piercing into the shield sounded, and the tall return cannon was prepared in an orderly manner under the control of the manipulating soldiers, and a stone weighing one hundred and fifty catties was netted, and with Buber's order, the huge stone flew towards the city wall with a roar.

"Bang ......!"

A sound like the sky cracking and the earth cracked was a startle for all the Xihe soldiers, and the other side of the Xihe town could clearly hear this sound.

"The sky is falling......!"

"Thor is ......!"

Some people who were timid and had never seen it were frightened at once, Hu Chuyi's face was a little pale, people who had not experienced it personally could not understand this terrifying pressure, and the entire city wall shook in the impact of this boulder.

"All of them are in place, those who run and retreat will be punished by military law, and those who shout and shout will be killed!"

Hu Chu immediately realized that he couldn't let it continue, otherwise the enemy would be in chaos before he could attack.

Fortunately, the training soldiers in Xihe Town also paid attention to the psychology of the soldiers, and under the appeasement of the ten commanders, the soldiers quickly sobered up, which made the steppe cavalry who wanted to see the excitement in the distance a little disappointed.