After reading the wooden target, Huo Yuanwai asked for the trap gun from the hand of the general, the structure of this thing is extremely simple, Huo Yuanwai understood at a glance that this iron pipe was cast of pig iron at one time, although there are holes at both ends, but in fact these two holes are not passable, there is a section in the middle of the pipe is solid, the hole at the small end of the inner hole is relatively deep, about more than a foot, and the thick end is relatively shallow, only three inches, which is used to insert a wooden handle.

In Huo Yuanwai's opinion, this thing is actually a one-eyed three-eyed musket.

As the second brother in Liu Erzu's gang, Huo Yuanwai is naturally no stranger to the three-eyed musket.

In fact, after the defeat of Liu Erzu, the Flying Tiger Village and various sub-villages, especially Pengjiazhai, suffered extremely heavy losses, and all of them were leaderless.

Peng Yibin urged his blacksmiths to make a casting three-eyed gun, which naturally fell into Huo Yi's hands.

Therefore, Huo Yi knows more about firearms than everyone present, and it is precisely because of these militaristic heavy weapons that Huo Yi will go around in tandem and organize a powerful coalition to ambush Chen Xian when he knows that Chen Xian is powerful.

From Huo Yi's point of view, although this one-eyed musket is more powerful than the three-eyed musket, it cannot fire rapidly, and it should be said that it has its own strengths and can be used together.

But none of this matters, there is a problem that cannot be avoided when it comes to using firearms.

Huo Yuan looked at it for a while, frowned and asked Bai Shijie: "This musket is good, but without gunpowder, it is also in vain, could it be that Bai Tuiguan plans to buy gunpowder with that Chen Xian?" ”

Huo Yuanwai's words poured a basin of cold water on the excited outsiders.

Only Bai Shijie was confident, smiled, and said: "It seems that Huo Yuanwai also understands firearms, but Huo Yuanwai doesn't have to worry, then Chen Er's court naturally has it, and this gunpowder is naturally no exception." ”

Huo Yuanwai questioned again: "Ordinary gunpowder can't be done, we have also tried ordinary gunpowder, but we can't go far." ”

Bai Shijie said: "Naturally, it's not ordinary gunpowder, the gunpowder used by my general to shoot just now was produced in the prison of Dongping Mansion City, what does Huo Yuanwai think?" ”

Huo Yuan was surprised: "Is this true? ”

Bai Shijie was dissatisfied: "Such a big thing, how can it be joked. ”

In this era, gunpowder weapons have long been available, and the Song army in the Northern Song Dynasty was always equipped with gunpowder weapons such as rockets, earth-shaking thunder, thunderbolts, and assault muskets.

In the Song-Jin War, the Jin people learned the use of gunpowder weapons from the Song people, and after years of development, the gunpowder weapons of the Jin people are not weaker than those of the Song people.

Among these many gunpowder weapons, the assault rifle is actually the predecessor of the musket, but the assault rifle of this era is based on bamboo and wood, and its power is very limited, and the effect of scaring people is far greater than the actual combat, and it is far from being a mature thermal weapon.

There is a big problem with gunpowder weapons in this era, that is, there are too many useless impurities in the gunpowder formula, for example, the Song Dynasty's "Wujing General Essentials" records that in the gunpowder formula, in addition to sulfur, nitrate, and charcoal, there are more than ten kinds of useless impurities.

Nowadays, the impurities in the gunpowder formula of Jin Guo are much less than those in the Wujing Essentials, after all, after so many years of development, there are still useless impurities such as iron slag, magnetic dust and arsenic.

Therefore, the combustion and explosion effects of gunpowder in this era were much worse than that of black powder with a reasonable formula.

After getting the gunpowder sold by Chen Xian through Bai Shijie, Wanyan Pingtao transferred the master who made gunpowder from Dongping Mansion to the prison and asked them to imitate Chen Xian's gunpowder.

Under the stimulus of the heavy reward promised by Yan Pingtao and the threat of killing their heads, this group of gunpowder masters spent several months and finally came to fruition.

This group of craftsmen first determined that Chen Xian's new gunpowder was free of iron slag and magnetic dust through observation and magnet adsorption, and then ruled out arsenic through poison testing.

After several months of hard work, the craftsmen narrowed down the composition of the gunpowder formula to four, and finally configured an improved gunpowder with a power equivalent to about six or seven percent of Chen Xian's new gunpowder.

The gunpowder that Bai Shijie's family will use to launch the musket just now is this kind of improved gunpowder, and after increasing some charges, the power is indeed no worse than Chen Xian's new gunpowder, but there is more slag after burning, and after firing a few shots, the gun must be cleaned up.

Huo Yuanwai said: "If it can really be self-produced, this musket is not bad, but Bai Tuiguan also knows that Chen Xian's most powerful thing is the cannon that has been eroded for several miles." ”

Bai Shijie said: "That cannon is just a larger musket, since even the musket has been made, what is the difficulty of the cannon, please see." ”

Bai Shijie pointed to the cart dragged behind the carriage, and the two families next to the carriage got Bai Shijie's signal, stepped forward, and lifted the wooden boxes on the cart.

The box was lifted, and everyone realized that it was not a box, but a square lid, and under the lid was a black iron pillar six or seven inches in diameter and four or five feet long.

Everyone stepped forward to inspect and found that the iron pillar was hollow in the middle, with a deep hole less than an inch in size.

Bai Shijie pointed to the iron pillar and said: "Everyone, please see, this is a cannon, in fact, it is a large musket, and the method of firing the cannon is also similar to that of the gun." ”

Although Bai Shijie said it lightly, he knew that this cannon was not just as simple as an enlarged musket.

For this cannon, many craftsmen were killed in the Fucheng Military Prison, and if it weren't for Wanyan Pingtao's frequent killing of heads and persecution of those craftsmen, this cannon would not have been able to be built.

In the beginning, the craftsmen cast the cannons according to the idea of casting large muskets, and during the test gun, the dozen samples cast by the craftsmen were all blown up, without exception.

Later, under the threat of death, the craftsmen offered suggestions one after another, while increasing the thickness of the cannon wall and reducing the caliber of the cannon, and some people proposed to strengthen the cannon with iron rings like a hoop barrel, and finally made this kind of cannon that would not explode.

It's just that after such improvements, the caliber of this cannon is only about an inch, which is slightly smaller than the caliber of Chen Xian's original one-pound cannon.

And the weight of this cannon is heavier than the five-pound cannon in Chen Xian's hand.

In order to facilitate the reinforcement of the iron hoop, this kind of cannon is cast from the tail of the cannon to the muzzle of the cannon gradually reduced, the iron hoop is made of thick wrought iron bars, this kind of iron hoop is made of the wrought iron bar in the production, the wrought iron bar is first beaten into a circle, so that the two sections are overlapped, and it is overlapped to burn red, and the small hammer is quickly forged to create a closed iron hoop.

After the iron hoop is stuck on the barrel, the craftsmen use the hammer and chisel to smash the iron hoop back a little bit, so that it is firmly set on the barrel, and give the barrel an inward stress to resist the force of the bore.

In order to obtain sufficient strength, the iron hoops on the barrel are very dense, basically there is an iron hoop within half a foot.