(Thanks to Qin Huang @ Han Wu, Time Newcomer Book Friends for the reward)

The Mongols may have long been accustomed to the artillery attacks of the Ming army, and in the face of dense artillery fire, they did not seem to be too touched, and dispersed at a very fast speed to avoid the damage of the artillery, and then continued to attack in the direction of the north gate of Datong.

After a round of shelling, the city of Datong soon fell silent, and the artillerymen were busy cooling the barrels, cleaning up the debris in the barrels, and preparing for the second round of shooting. Later modern artillery could fire continuously, but there was also a break between two shots, and the barrel needed to be replaced after a long time. During the Ming Dynasty, the manufacturing level was low, the barrel of the artillery was easy to explode, and the quality of the gunpowder was not up to standard, and the performance was not good. Cao Yue didn't have a good way to improve this, and he couldn't even think of how to improve it.

After seeing a round of fire from the Ming artillery on the head of the city, they did not make another sound, and the Mongolian sergeants, who had dispersed quickly, began to slowly gather again, and quickly rushed towards the city wall.

In the training, Cao Yue had already taught the simple ranging method used by the artillery of later generations to use the combination of eyes and fingers to commanders at all levels, and Cao Jie, who commanded the first battalion, was also using this method to measure the distance, and combined with his own experience, he roughly estimated how far the enemy was from the city wall.

This method, which was commonly used in early artillery training in later generations, was really convenient and practical, and the estimated distance was not much different from the reality.

"The Jiannu Tartars are coming into range immediately, all of them are there, get ready!" Cao Jie calmly gave the order to prepare to shoot.

The speed of the Mongol assault began to pick up, and like a flock of rats, they quickly rushed in the direction of the moat.

Cao Yue roughly estimated in his own way that the distance reached a distance of about five hundred meters at two hundred paces, and his right hand, which was originally hanging down, began to be raised. At this time, the Mongols had already entered the effective range of the musket, but at this distance, the power of the musket was not very large, and if it got closer, the lethality would increase exponentially.

At a distance of two hundred paces, no matter how good a shooter is, he can't shoot a bow and arrow so far, but a powerful bed crossbow can be shot, but the siege Jiannu is not equipped with such a large shooting weapon.

Because Cao Yue had a strict order, he had to give the order for the first round of shooting in person, and after Cao Jie gave the order to prepare for shooting, he had been paying attention to Cao Yue's gestures.

The shouts of the Mongols under the city became louder and louder, and the eardrums of the Ming soldiers on the city were buzzing. But Cao Yue was still calm and did not have any nervousness.

Sun Chuanting, who was standing on the side, couldn't help but admire the composure and calmness of this young general, how good is this psychological quality to be able to do this? You must know that now everyone is facing a life-and-death killing, and it is a demon who is thirsty for killing, not to mention Cao Yue, who is only about twenty years old, even other generals who have been in war for a long time, will be terrified when they see such a scene.

"Start shooting!" After Cao Yue roared out the order to fire, his raised right hand swung down violently.

"Shoot!" After Cao Jie saw Cao Yue's right hand slamming down, he immediately roared hoarsely, raised the red flag in his hand high, and waved it down with all his strength.

With Cao Jie's order, a dazzling red light immediately flashed on the city, and a violent gunfire rang out immediately, and bursts of black smoke rose from the city at the same time.

With the shooting of the soldiers of the first battalion of the Ming army at the head of the city, the Mongols who rushed towards the city wall immediately fell in large pieces.

At this time, the Mongols besieging the city were only more than 100 steps away from the city wall, and the first round of shots of the Ming army's musket team was loaded with scattered bullets, and the countless iron sand formed by the shooting had almost no dead ends, and the Mongols who were shot fell down with a large wail. However, most of the fallen Mongols were only wounded, and only a few unlucky ones lost their lives. There were some more unlucky who, after being shot and wounded, were trampled to death by their companions who were swarming from behind.

And just as the Mongols continued to charge forward with a wail and roar, a dense number of bullets were fired from the top of the city again, and in the clouds of gunsmoke, scorching lead bullets whistled with a scream, so close that they easily shot through the armor worn by the Mongols. Screaming continued, and more Mongols fell head-on.

But the Mongols behind still ignored the fierceness of the battlefield, holding their swords high, carrying ladders, and rushing towards the city wall as if they were dying.

The third round of firing on the head of the city began without hesitation, and more of the Mongols fell under the fire of buckshot, and at this time, the Mongols also began to shoot, but the place where they drew their bows was still a hundred paces away from the city wall, and because of the elevation shot, the arrows fell at least a few dozen paces away from the city wall.

The Mongol suicidal attack continued, and by this time the sergeant of the fourth round of shooting had already retreated, and the sergeant who had reloaded his ammunition after the first round of shooting had stepped forward quickly and prepared to shoot under the command of General Qian, who commanded the battle. Another mountain of bullets whistled out, and countless bullets penetrated the strong body of the Mongol. No matter how strong the Mongols were, the arrows might not have been able to penetrate deep into their muscles, but the bullets hit them mercilessly, wounding them and even killing them.

The murderous Mongols, who had just been alive and vigorous, were like a flock of lambs waiting to be slaughtered in the face of the secret letter shooting of the Ming army defending the city, without the slightest resistance, and finally collapsed limply on the ground quite far from the moat, turning into a bloody corpse. The Mongols, who were lucky enough not to die, lay in a pool of blood and wailed in agony.

Sun Chuanting, who was holding a telescope to check the situation on the battlefield, was completely stunned, he had never seen such a war.

It wasn't that he had never seen muskets fired, but it was the first time he had seen a thousand muskets fired in each round, and there were almost no intervals in between, and there were simply not many unwounded enemies rushing over in this platoon, unless they had killed enough people to shoot more bullets than they fired, or attacked from outside the range of the muskets.

The Mongols have always been very fierce in their wars, but today their ferocity has no place to play, and under the intensive fire of the soldiers of the first battalion of the Ming army, these powerful Mongol warriors fell in pieces. In a maximum of ten minutes, the corpses of the Mongols were already piled up outside the north gate of Datong, and at least 2,500 Mongols had become the souls of the Ming army's muskets, or they were seriously injured and could not move.

In the face of such a violent battlefield situation, the Mongolian commanders who commanded the siege had already lost their minds, they had no way to retreat, only a way to rush forward, and the follow-up Mongols continued to rush forward with their swords. The Ming musketeers at the head of the city continued to shoot in an orderly rotation, firing fiery bullets into the Mongols' bodies.

Sun Chuanting, who was standing beside Cao Yue, looked at everything on the battlefield in amazement, and muttered to himself: "Massacre, this is a one-sided massacre!" ”