"But uncle, I think what Xiao He said is indeed right, we don't have enough iron, so we can't be rash!" Lu Xiaoyu also frowned and said when he saw the little iron left.

The Supreme Treasure paced back and forth a few steps, and his eyes fell on the armored combat vehicle that had accumulated dust in the corner, "If you have it, use it!" ”

"But uncle, this is the masterpiece of the shopkeeper and your painstaking research and improvement, how can you destroy it to obtain the iron plate on it?" What is Xiao?

"Now we really don't need chariots in mountain warfare, there is a give-and-take, only by giving up this large number of chariots can we create new weapons to meet different enemies, and when we have the conditions in the future, why is it difficult to create a better chariot than this?" Supreme Treasure said, and Lu Xiaoyu also nodded in agreement at this time.

"Just do what my uncle said, these chariots might as well play their last role if they are left here to collect dust, and I believe that the power of the red-coated cannon that my uncle said is worth it."

"It's enough for you to believe in me, come on, Xiao He, you ordered craftsmen to dismantle the iron plates on these armored vehicles, and we will immediately melt iron and steel in a furnace, I want you to know what real power is!" The Supreme Treasure said with a sparkle in his eyes.

At the beginning, Lu Xiaoyu, who is now the Supreme Treasure, worked hard to create an armored combat vehicle, although it was very successful and very lethal, but it has been suffering from mountain combat and has not come in handy. Seeing that more than a dozen armored combat vehicles were being made and eating ashes, Supreme Treasure felt very uncomfortable, and finally had to make the decision just now, removing all the iron plates wrapped in armored combat vehicles to make red-coated cannons, and only three were left to play a certain role in the subsequent siege battles.

In fact, this red-clothed cannon is not native to the Central Plains, and after consulting the electronic encyclopedia, Supreme Treasure knows that this is the introduction of European technology, which was formerly called the Hongyi cannon. But I'm sorry, in this era where Supreme Treasure lives, the West and the East have not fully risen, and they are all just budding when the country is born. Whoever can be the first to create his own civilization is the strong man of this era. And the Supreme Treasure is the one who changed the times.

This red-coated cannon was also renamed by him as a divine cannon with the characteristics of the Celestial Empire. This magic cannon has many advantages in design, the barrel is long, the wall is very thick, and it is gradually thickened from the muzzle to the tail, which is in line with the principle of high to low bore pressure when gunpowder is burned.

There are cylindrical lugs on both sides of the center of gravity of the gun body, and the gun can adjust the firing angle with this axis and change the firing range according to the amount of gunpowder; It is equipped with a crosshair and a light gate, and the trajectory is calculated according to the parabola, which is very accurate. The Supreme Treasure is manufactured with a length of about three meters, a diameter of 110 to 130 mm, and a weight of more than 2 tons.

Such a self-made large-caliber fire gun is exactly the same as the previous Hongyi cannon in principle, both of which are front-loading smoothbore fire door ignition, but the specific production is very different. Most of the guns of the Supreme Treasure are made of iron, and the inner chamber is trumpet-shaped, and the barrel appears thick and heavy, and the barrel is spacious in terms of its caliber. Compared with the Hongyi cannon, this kind of firearm has a larger amount of gunpowder filling, and the gunpowder gas seal is very good, so the firing range is long, in addition, it is not easy to overheat, and the rate of fire is also fast. And the iron is very hard, each shot is not likely to cause the expansion of the gun chamber, the shooting accuracy and range drop very slowly, as a weapon has a moderate life and high cost performance, the only drawback is that the weight is heavy, and it is a little difficult to carry.

However, fortunately, this kind of divine machine cannon weighing thousands of catties can still drive fast in front of the trolley transformed by the wooden ox and flowing horse made by the Supreme Treasure.

After days and nights of research and the prototype of the iron-making cannon, the craftsmen were overjoyed to see the results of their efforts, and it was finally completed.

The Supreme Treasure wiped the shiny barrel and sighed, "After waiting for so long, I finally waited for you." Let me see your power! ”

"Brother Xiaoyu, this magic cannon has finally been made, but how can such a big guy use it? You can't use this thing to hit the city gates, can you? "Lu Xiaoyu, like the Supreme Treasure, has not closed his eyes for a few days and nights, and is helping the Supreme Treasure to study the production of the divine machine cannon and iron smelting, and when he speaks, his two eyes are alive and clear, and the bags under his eyes are extremely deep.

"In fact, before I built this cannon, I didn't think about what shells to put on it, until two hours ago, I looked through the history of the Ming Dynasty and recorded the history of the red-coated cannon, and wrote that there were three kinds of projectiles fired by the artillery, solid bullets, shotguns, and flowering bullets. Inspired by this, we can draw gourds to make these three types of cannonballs. Supreme Treasure explained.

"It turns out that the shells of this cannon are so exquisite, so what are they used for?"

"Let's talk about solid shells first, this kind of shell has no gunpowder inside, is made of iron or lead, a small amount is ground into a sphere with stones, mainly used for siege holes through the city wall fortifications, the range is long, but the lethality of personnel is not great, unless it hits directly or by hitting other objects, so that it is broken and splashed, causing indirect casualties. Shotguns, at that time, were high-power shells of field artillery, composed of several pounds of lead and iron pellets, and also filled with gravel, when firing, a dozen large pieces, mainly anti-personnel personnel, but shotguns have a fatal weakness, that is, the range is short, and the effective killing is about 300 meters (one says within 500 meters). Finally, let's talk about the flowering bomb, which is another name for an explosive projectile, which contains gunpowder inside, and is named because when it explodes, shrapnel shoots everywhere, like a flower blooming. ”

"It seems that this third shell works the best!"

"That can't be said, each shell has its own advantages, and we need to use it wisely to get the most out of it."

"Brother Xiaoyu, you are really amazing!" Lu Xiaoyu gave a thumbs up to the Supreme Treasure.

"It's thanks to you!"

"Thanks to me? Big brother, don't make fun of me, I'm just helping you with chores on the side, at most I have a brute force, my general is just a name, everyone respects you Lu Xiaoyu, what else can I do? Lu Xiaoyu said discouragedly, except for the first day after he came to the Flying Tiger Army, he didn't give much advice and ideas after that, all of them were commanded by the Supreme Treasure there, which made people wonder where the former Southern Chu legend Lu Xiaoyu went.

"Don't be discouraged, don't be presumptuous, as long as you work hard to learn the knowledge in this electronic encyclopedia, you will be like me or even better than me. And this time, thanks to the laptop you brought, I was able to make the blueprints on it so that the gun would not get out of shape, which is so important. Supreme Treasure encouraged.