(Thanks to my love of fried spinach book friend and old friend Sword Boy Hua for the reward)

Dolgon personally commanded the people, and the battle at the North Gate was fierce.

The first and second waves of attacks were futile, and at least more than 5,000 sergeants died under the artillery and musket fire of the Ming army, but Dolgon also found a surprising now, that is, the Ming army's musket fire was significantly more dense than before.

Not only was the musket shooting dense and sparse, but the Ming army's shooting distance was no longer as long as it was at the beginning, but it was concentrated when the Qing army besieging the city approached. Many circumstances indicate that the amount of gunpowder of the Ming army in the city is likely to be insufficient, and Cao Yue is saving ammunition.

After a comprehensive analysis, Dolgon gave the order for a full-scale attack, and the Qing troops from all directions attacked the city in an all-round way.

Duoduo commanded in the direction of the west gate, Azig was in the east gate, and in the direction of the south gate, the Ming army could not capture several camps built on the mountains outside the city, so they did not dare to attack in this direction. However, Dolgon also arranged nearly 20,000 horses, preparing to take advantage of the chaos to attack the Ming army who dared to go out of the city.

Dolgon knew that morale was born from a single blow, and if you started with a little harder and achieved results after paying the price, then morale would naturally rise. If things don't go well everywhere and it is impossible to achieve results, then morale will definitely suffer.

Therefore, on the first day of the attack, he was preparing to fill in the Han army, the Korean army, and part of the Mongolian Eight Banners, and also attack the city.

Whether he can stand at the head of the city is one thing, he just wants to make Cao Yue feel the pressure and consume a lot of ammunition in the city.

Dolgon now knows that the reason for the strong combat effectiveness of the Ming army is that it makes good use of muskets and artillery, if the Ming army's muskets are out of bullets and the ammunition of the artillery is exhausted, then the resistance encountered by the Qing army's attack will definitely be much smaller, and the difficulty of the attack will be greatly reduced, even if it cannot attack the city, it can also kill and injure a large number of Ming troops on the city.

Now the situation is that the Qing army besieging the city does not even have many opportunities to fight back with bows and arrows, and even if it rushes under the city wall, it still has to beware of the musket shooting of the Ming army, as well as the kind of bombardment called "Dragon King Cannon".

Dolgon also ordered Tong's artillery battalion to shoot the north gate of Datong with the greatest intensity, preparing to smash the tower of the north gate of Datong and greatly injure the Ming army at the head of the city. Dolgon's orders, of course, were well executed, and the artillery battalion was firing as fast as it could.

But to Tong Yangxing's surprise, the city was full of red-coated cannons of the Ming army, and the firing rate was much faster than the artillery battalion under his command.

When the Qing artillery battalion fired two rounds of artillery, the Ming army could shoot at least three rounds.

Tong Yangxing did not know that Cao Yue had made great improvements in the firing of artillery, greatly increasing the rate of fire of artillery.

The simple ranging method used by the artillery in later generations: the jumping eye method and the thumb ranging method have been fully tried in the artillery battalion under the promotion of Cao Yue, which has improved the shooting accuracy of the artillery to a certain extent.

After the gun is fired, the temperature of the chamber is very high, and it needs to be cooled down, otherwise it is very easy to explode.

Under normal circumstances, to cool down the gun after firing once, first fill the gun chamber with water to cool down the gun chamber, then pour out the water in the gun chamber, and then wipe the water stains in the gun chamber dry, and then you can load ammunition.

Unlike the Jiannu artillery, the Ming army did not use bulk gunpowder, but paper shell bullets rolled up in thick kraft paper, which were filled with pre-measured gunpowder and flowering shells, sealed and then coated with a thick layer of grease, which could be waterproof and lubricating.

Compared with the artillery battalion of Jiannu, the reloading rate of the Datong Army artillery battalion is much higher, and the firing frequency of the red-coated artillery is also much faster.

Therefore, the blow of Jiannu's artillery to Cao Yue of the Ming army was far inferior to the blow inflicted by the Ming army on Jiannu.

And because a large amount of gunpowder smoke obscured the field of vision, it was difficult for Jiannu artillery fire to aim at the Ming army on the city wall.

Of course, Cao Yue was also very dissatisfied with the firing effect of the artillery.

Cao Yue really wanted to wipe out Jiannu's artillery battalion, but after the shooting began, the battlefield was full of gunsmoke, and he couldn't see the enemy's position clearly with a telescope.

Just when Cao Yue was worried about not being able to accurately bombard Jiannu's artillery position, a gust of wind suddenly blew, which instantly blew away most of the gunpowder smoke on the battlefield. At this time, the Jiannu artillery battalion fired a round of artillery, and this round of artillery fell on the city wall except for one shot, and the other big tribes were outside the city, but Cao Yue once again determined the location of the Jiannu artillery battalion.

Cao Yue immediately ordered the artillery battalion to calibrate the firing angle, and as the artillery battalion commander's firing order was issued again, more than 20 flowering shells whistled out, nearly half of which landed in the Jiannu formation guarding the artillery battalion, and many stumps and broken arms flew into the air.

At least five flowering shells landed on the artillery positions of the Jiannu, and the violent explosion of the artillery ignited the ammunition of the artillery battalion of the Jiannu.

The successive violent explosions were like fireworks in the camp, which was very spectacular, and at least two of Jiannu's red-coated cannons were blown into the sky, turning into a pile of scrap copper and rotten iron when they fell.

The smoke of gunpowder on the head of Datong City, which made people cough uncontrollably, had not yet dissipated, and the gunners had quickly returned to their gun positions, ready to reload and fire again.

"Boom Boom Boom ......" when Jiannu didn't have time to counterattack, the red-clothed cannon of the Ming army roared again, at least six shells fell on Jiannu's artillery position, accompanied by the loud sound of the ground shaking the mountain, Jiannu's artillery position once again sent out a huge explosion, billowing smoke rose into the sky, and several of Jiannu's red-clothed cannons flew into the sky.

"How is this possible?" Tong Yangxing, who had never thought that his artillery position would be bombarded by the artillery of the Ming army, watched all this in amazement. He knew that the shooting deviation of the summoned red-coated cannon was very large, and it was impossible to achieve a precise strike, and the shooting effect could only depend on luck.

He never expected that his artillery position would be bombarded by the Ming army twice in a row, and many artillery pieces would be blown up.

How can this battle be fought? He hastened to order the remaining artillery to move to its position so as not to be bombarded by the Ming artillery again, and at the same time sent someone to report the situation and the losses suffered to Dolgon.

At this time, Dolgon, who was riding a horse and standing on a hillside, saw that the third wave of attacks was repulsed by the Ming army, and the communication of Dolgon had just arrived. The war did not go well, which made Dolgon very angry, and the report sent by Tong Yang made Dolgon furious.

How could the war be? Dorgon was puzzled, he couldn't understand why his younger brother Duoduo, who had always performed well, had suffered repeated defeats under Datong City, and today he couldn't control the situation and had to stop the attack.

How could the artillery battalion of Tong Yang be bombarded by the Ming army at the head of the city and suffer heavy losses?

But these things have happened in real time, and there is no room for Dolgon to doubt them.

How can this battle be fought? Dorgon also decided to stop the attack for the time being.

With Dolgon's order, Jiannu, who was ready to attack the city again, retreated like a tide!