Artillery has a very strong killing effect from the beginning of its birth, and it can be called the most powerful type of firearms, and has developed many branches in the future world, and finally has achieved an invincible golden body, and its children and grandchildren are thriving, and it is the important weapon of the country.

However, in these years, there are still many restrictions on the use of artillery, and it is precisely because of this kind of restriction that the major armies in this period have reservations in the use of firearms, although firearms are powerful, but the restrictions are also large, so cold weapons are still popular.

Among them, the most troublesome thing for the soldiers is the word "explode".

These two words, from China to the European countries, from the birth of artillery to modern times, have always been a curse that threatens all soldiers, a sword of Damocles that hangs over the heads of both enemies and friends.

The musket explosion is not terrible, often only one person is injured, if it is really unlucky, two or three are possible, but the scale is definitely not too large, compared with the artillery explosion often kills people in a circle, it is really a bodhisattva's heart.

China lacks copper, so the cannons are basically iron cannons, if it is a copper cannon, it is relatively strong, and if it is blown up, it is generally an opening in the cannon body, and it will not be torn apart.

And the iron cannon, it is really a tragedy, and the Ming Dynasty is a tragedy within a tragedy, lack of money, lack of copper, the emperor always can't help but turn the copper cannon into copper money.

It is no exaggeration to say that more than 97% of the Ming army's active artillery is iron cannons, and a few copper cannons are always ready to be smelted into copper coins.

What's even more tragic is that in this cold environment, the extreme cold outside has reduced the temperature of the iron cannon itself to a very dangerous number, while the thermal conductivity of iron is good, whether it is heating or heat dissipation, the speed is first-class, and this side is still a cold cannon body.

One shot goes down here, the barrel heats up rapidly, another shot, the barrel continues to heat, and another shot - boom!!!

Scrapped.

Generally speaking, when Xiao Ruxun used large artillery tactics, he learned the method of three-stage shooting, and divided all the artillery into three teams, the first team retreated after the fight to dissipate heat, the second team continued, and the second team continued after the third team.

In terms of the speed of firing once, the heat dissipation effect is still good, so it can maintain a long time of shooting, generally speaking, Xiao Ruxun does not allow soldiers to use water to accelerate heat dissipation, this year's iron smelting technology and cannon casting technology are not very bright, the hot cannon body here, the water is sprinkled over there, hiss~

A burst of water vapor is indeed beautiful, but who knows if this cannon body will be deformed?

Everyone understands the principle of thermal expansion and cold contraction, you are dissipating heat quickly this time, and the next shot may be blown up, and everyone will die.

However, it is obvious that the Ming gunners who were in a hurry to fire the Mongols did not care about this, or they thought that the cold itself could accelerate the heat dissipation of the artillery, so they used the artillery more unscrupulously, but can the iron of the Ming Dynasty be compared with modern steel?

When Wei Yunzhen rode to the city tower, he saw several broken corpses that fell from the city tower, and a broken leg, he frowned, and immediately dismounted and rushed to the city wall.

"Carry them all away at once! Fill in the gaps with sandbags and bring in another cannon! Pay attention to the heat dissipation of the artillery! Pay attention to the heat dissipation of the artillery! Up to three guns, which must be replaced! Up to three shots! The gun must be changed! ”

Immediately, heralds ran all over the city walls, delivering Wei Yunzhen's orders to the ears of every Ming gunner, but it seemed to be too late.

The explosion on the wall of the Ming army greatly boosted the morale of the Mongols, and the Mongols actually organized a charge again in a very short time, and the pressure on the Ming army on the city wall increased greatly.

"Fire! Target! Rolling wood and stones, don't stop! ”

Wei Yunzhen personally commanded the battle on the city wall, and he drew his sword and roared angrily.

The war drums of the Ming army rumbled at the head of the city, and the governor personally commanded the battle to give the Ming army some peace of mind, and the panic caused by the bombing incident gradually disappeared.

The surviving Ming soldiers at the head of the city immediately launched a counterattack against the Mongols, arrows rained down, artillery roared, and the Mongol attack was once again effectively blocked.

However, the Mongols were not only cavalry, the Mongols who plundered most of the castles in Datong not only had artillery muskets, but also trebuchets and bed crossbows, and in front of Wei Yunzhen's eyes, two soldiers were pierced into a string of bed crossbows and nailed to the castle tower behind him.

He stared at the two dead soldiers with tears in his eyes, panting.

"Futai! It's too dangerous here! There are not only artillery, but also bed crossbows and trebuchets in the north, which is too dangerous here! You should leave immediately! ”

The Yanmen guard hurriedly ran to Wei Yunzhen's side and shouted loudly.

"The soldiers are in a bloody battle! But I'm going to run away? If I can't stand with the soldiers, why should I use my life? Although I am weak, I am not afraid of death! ”

Lao Wei refused and continued to be nailed to the city tower.

Lao Wei is a civil official, a civil official in his bones, of course he has his own selfishness, just like when Zhang Juzheng went home for burial after his death, the Jingzhou officials at that time were greedy for the power of the Zhang family, and rushed to mourn, but he was the only one who didn't go, and people thought he was stupid, but in fact he was not.

Because he has already seen that as soon as Zhang Juzheng dies, his forces and henchmen will end sooner or later, although there is still a bit of dominance at that time, but it is bound to not last.

Therefore, a petty official, he resisted the possibility of being retaliated against by the Zhang family, so he didn't go to mourn, and even whipped the servant who persuaded him to mourn, and his reputation was great for a while.

He was born as a third-class jinshi, and he was not elected as a Shujishi, so he could only be released after observing politics, according to the traditional rules, his future is very limited, and he may even be trapped in the position of six or seven grades for the rest of his life.

But he didn't accept his fate, seized the opportunity, resisted the fear of the power of the Zhang family in his heart, and successfully entered the eyes of the anti-Zhang Juzheng forces in the court, so he was promoted back to the capital and served as the imperial historian.

During his tenure as the imperial historian, he constantly fired at Zhang Juzheng's remaining forces, and it cannot be said that he opposed Zhang Juzheng's reforms, but he did stand on the opposite side of Zhang Juzheng.

And at that time, he didn't even have the qualifications to oppose it, he was just a cannon fodder, and even so, he was deeply feared by Zhang Siwei and Shen Shixing and others.

He can't say that he was praised by Hai Rui to say that he is a backbone minister, he has his own selfishness, and he is also doing things in order to promote his own power, he bluntly pointed out that Zhang Juzheng's various mistakes are not because of justice and ideas in his heart, but for power and status.

The reason why he came to Shanxi as a governor was to defend Zhao Nanxing, the future boss of the Donglin Party, offended other forces in the imperial court, and was sent to Shanxi as a governor.

He has never given up the opportunity to return to the central government, but at the same time, his basic qualities as an official and the minimum sense of responsibility prompted him to benefit the party for the sake of the official, to shoulder his own responsibilities, to live up to the significance of Hai Rui's inscription to him, and to strictly guard the last pure land in his heart.