In fact, the Thunderbolt Army has learned that Xiong Ben is imitating grenades and artillery, but because of the strict defense, the Thunderbolt Army spies in Yongkang City can't get close to the firearms workshop at all, let alone know the performance parameters of the artillery. At present, the range of the light mother and child cannon carried by Cao Ergou is about three miles, and the range of the light tiger squat cannon is about one mile, which is still achieved by Ouyang Xuan's very strict quality control of the quality of the barrel and gunpowder, coupled with the continuous improvement of the production process. You must know that the current yield of the Thunderbolt army's cannon barrel is still only about 30%. Judging from the few shells from the city tower, the effective range of the artillery of the new Yongkang army should be about two miles, which can hit the position of the Thunderbolt army, although it is already at the limit of the range, but the destructive power of the projectile impact point is still much greater than that of the trebuchet. Therefore, as soon as the artillery on the Yongkang wall sounded, Cao Ergou immediately ordered the artillery to fire back.

This time, the three companies of the Thunderbolt Army brought a total of six light mother and child cannons and twelve light tiger squat guns, but only four mother and child cannons could be fired immediately to attack Yongkang City, because there were still two mother and child cannons that had not yet been installed, and the Tiger squat cannon was too short to be used. The comparison between the artillery of the two armies was not simply two to one, but the overwhelming superiority of the Thunderbolt army, and the Thunderbolt artillery soon completely beat the city's head artillery to the ground. The reason for this is that the Yongkang New Annexed Army uses front-loading artillery, which has a slow rate of fire but a good closed gun chamber, and is condescending, although the firing range is only a little worse than that of the Thunderbolt Army, but it is crushed by the Thunderbolt Army in terms of rate of fire and accuracy. In addition to the fact that the mother and son cannon had a rate of fire several times faster than that of the new attached army of the Yongkang Army, because of the skillful operation of the gunner, the shooting accuracy was also different from the firing method of the new attached army of Yongkang by feeling because of the use of ranging measurement, calculation and wind deviation correction.

The artillery of both sides only fired three rounds, and the artillery at the head of the city was destroyed, and the head of the city was also blown to the ground, but the Thunderbolt army was unscathed, and Xiong Ben, who was so anxious to hide in the city tower to supervise the battle, angrily scolded the gunners for being a group of waste. Rough with artillery, he saw that his own shells were falling in front of the Thunderbolt army, and he thought that the gunpowder was not enough. Anxious to scold, he ignored the fire of the Thunderbolt army, walked to the remaining cannon with his sword, and forced the gunner to increase the amount of gunpowder fired, and did not listen to the warning about the explosion. The gunner, who was threatened by the sword, had no choice but to increase the amount of gunpowder, and after trembling and lighting the extended fuse, he crawled and hid, and Xiong Ben had already run down the tower.

According to Xiong Ben's order, the amount of gunpowder was increased, and the power was really great, but this was not a good thing - the artillery was directly blown up. Because the imitation barrel was originally of poor quality, and after firing several shots in a row, the gunpowder charge was greatly increased, which was purely looking for death. This explosion not only completely wiped out the artillery made by the Yongkang New Annexation Army, but also directly collapsed the upper part of the city wall here.

After the artillery at the head of the city was dumbfounded, the Thunderbolts bombarded the rest of the city defenses. By the time the remaining two mother and child cannons were installed, the ballistas and trebuchets on the city wall and in the city were destroyed one by one, but although the Yongkang city wall was only made of earth, it was impossible to collapse it with the six sub-mother cannons of the Thunderbolt army alone. Cao Ergou saw that Yongkang City had no long-range counterattack means, so he ordered to slowly advance the formation to a mile away from the city wall, this distance was already within the range of the twelve tiger squat cannons, and the closer the distance, the more powerful the mother and child cannons.

The upper part of the city wall at the place where the artillery of the Yongkang New Army was blown up had collapsed, but now it was bombarded by the concentrated bombardment of the 16 guns of the Thunderbolt Army, and soon a huge gap collapsed. The gap soon became the focal point of the battlefield, and outside the city, the Thunderbolt soldiers were slowly approaching the gap under the cover of giant shields. The defenders in the city, driven by Xiong Ben's own soldiers, flinched and refused to go, because everyone knew that once they stepped forward, they would be baptized by the fire of tiger squatting cannons. Because the city wall has been blown down, Cao Ergou has ordered the artillery to use a dozen large pieces of shotgun instead of solid bullets, and even if the human body is hit by one, it is a big blood hole.

Under the cover of the giant shield, the Thunderbolt soldiers rushed up the wall through the gap at the base of the wall, and ran down the wall to the four gates. Cao Ergou's order was very clear, that is, to firmly control the four city gates to catch turtles in an urn, instead of entering the city for bloody street battles. The new annex of the Yongkang Army in the city had already been ravaged by artillery, and seeing that the soldiers of the Thunderbolt Army occupied the city, they had long lost their fighting spirit and fled to the north and east gates. It turned out that in order to prevent the Thunderbolt army from attacking, Xiong Ben had already blocked the east gate and the south gate, leaving only the north gate and the west gate unblocked. After Xiong Ben failed to go out of the city to raid the Thunderbolt army, he ordered people to block the west gate with knife carts and horses, and now only the north gate can escape. Out of the north gate of Yongkang for a mile, you can follow the Weijiang River to escape into the ravine behind Yongkang City. Although the ravine where the Mijiang River originates is not long and not as wide as the ravine formed by the Wenjing River, the mountains in the ditch are as steep and difficult to attack, and there are hundreds of families living in the ditch to escape the war.

Xiong Ben was surrounded by more than ten personal soldiers, followed by a group of chaotic coaxing defeated soldiers to flee into the mountain pass, as long as he rushed through the mountain pass, he was a fish into the sea and let me jump. But he was really frightened by the Thunderbolt army, and he was afraid that there would be an ambush at the mountain pass, so he deliberately slowed down. The defeated soldiers in front rushed through the mountain pass unharmed, which made Xiong Ben feel reassured, and he immediately followed with his own soldiers. Just as he was approaching the mountain pass, Xiong Ben heard a soldier shouting "grenade" in horror, he turned his head to look at the sound, and found that more than ten grenades were falling from the sky, and the grenades were a group of strange people standing in the thatched bushes on the side of the road. The men were dressed in mottled green and yellow clothes, and they were all holding a black iron pipe. Just as Xiong Ben was shocked and wondering, he saw those black iron pipes spewing out flames and white smoke. While hearing the dense explosion, Xiong Ben felt as if he had been hit hard by a sledgehammer in his chest, and he fell backwards. Before he fell to the ground, he saw the soldiers around him covered in blood and fell to the ground.

This group of weirdos is actually a platoon of people from the reconnaissance company led by Dong Hu, the strange clothes are the camouflage uniforms designed by Ouyang Xuan for special operations, and the black iron pipe is the newly developed musket. As early as before Cao Ergou attacked the city, Xia Hu personally led people to quietly ambush in the mountain pass behind Yongkang City according to Ouyang Xuan's order. In the pre-war analysis and deduction, the General Staff believed that after Xiong Ben lost Yongkang City, because of the loss of use value, the Mongols in Chongqing Mansion would not take him in, and he was unwilling to send people to Qingcheng County, and it was basically certain that he would flee from the north gate to the mountains to become a bandit again. In order to prevent Xiong Ben from escaping again, Ouyang Xuan ordered the painter to draw his portrait according to the description of the captive, and then repeatedly asked the captured Wanjiapingshan bandits to confirm it. The final portrait was provided to the soldiers of the reconnaissance company who participated in the ambush mission, and Xiong Ben's appearance was remembered by them for a long time. When Xiong Ben was still hesitating in front of the mountain pass, he was recognized by the soldiers of the reconnaissance company who were in ambush. In order to kill Xiong Ben with one blow, Dong Hu divided the ambushed soldiers into two rows, and alternately threw grenades and fired muskets in the front and rear rows to form a high-density multiple rounds of fire. Under the close-range bombardment of grenades and muskets, Xiong Ben, who was dressed in iron armor, was also killed on the spot, and his own soldiers, who were only wearing leather armor, were blown to the ground, and none of them survived.