The construction of the barracks was fast, and with the support of silver, not only the construction of the barracks, but also the many equipment needed for the research and development of firearms were slowly transported from Kaifeng to Henan Prefecture. The province can't come up with silver to develop firearms, and it is a waste to put these things on the table, and it can be exchanged for silver, plus it is needed by the Jiangning battalion, so the governor will naturally not say much.

What is more important is the research and development of military craftsmen, firearms, the need for skilled military craftsmen, ordinary craftsmen are not good, even to enter the military camp, still need a certain amount of training.

is also the role of silver, in just half a month, the Jiangning battalion recruited nearly three hundred military craftsmen.

The price offered is five taels of silver per month, and such a price, not to mention 300 military craftsmen, is more than enough to recruit 3,000 military craftsmen.

Bi Maokang threw himself into the research and development of firearms as quickly as possible, and he did not need to worry about specific construction matters, and the first battalion of the Jianrui Battalion led by Ma Huabiao and the Shenji Battalion under Sun Chuanting's concurrently commander were all doing specific things, and Sun Chuanting was directly responsible for the overall construction.

The flint hit launched the bird gun has been successfully developed, and Bi Maokang even brought a bird gun to the Jiangning camp, so when the barracks were still in the process of large-scale construction and could not be mass-produced for the time being, Bi Maokang devoted himself to the development and testing of the flowering bomb.

It's an incredibly hard job.

Today's general cannons, Furlong machine guns, etc., are fired with solid shells, and the power is not very great.

The inspiration for the flowering bomb comes from the understanding of the explosive cannon and the slow artillery, which were invented during the Jiajing period, similar to the current mines and time bombs, of which the explosive cannon belongs to the stepping mine. It contains flint, and the flint is used to ignite when it is subjected to frictional pressure, igniting the black powder and exploding. The bomber needs to be stepped on by a person, and it is under a lot of pressure before it explodes.

As for the slow cannon, it is similar to a time bomb, after igniting the seal. It exploded in about two hours.

Bi Maokang has been thinking about this question for a long time, whether he can use the general's cannon or the Fran machine gun, the tiger squat cannon, etc., to send such a cannonball out of the cannon, if it can hit the enemy who is marching or charging, the cannonball blooms, forming a huge lethality, such a cannonball, wouldn't it be invincible.

But this kind of research is not as simple as imagined. He's been doing it for four years.

The production and design of artillery shells, a few hundred years later, is also a specialized discipline, let alone now.

Let's just say that the flowering bombs are all made of cast iron, and the iron walls can't be too thick or too thin, too thick, and the internal space is small. The amount of black powder that can be filled is limited, with the power of black powder. Even if it is exploded, the power is not very great, or even it cannot be exploded, it becomes a stuffy bomb, the barrier is too thin, and it is even more dangerous, and it is fired from the barrel. High temperature friction, high temperature and high pressure may cause the shell to explode directly inside the barrel.

The greatest power of the flowering shell comes from two aspects, one is the shock wave formed after the explosion of the shell. This shock wave kills people invisibly, and the second is the fragments formed after the explosion of the shell, these fragments are bullets, and the more fragments, the greater the lethality of the shell.

Of course, there are many specific problems, such as the fact that the internal caliber of the shell must be exactly the same as that of the barrel, the design of the fuse of the shell, and so on.

Therefore, after four years of research and countless experiments, the concept of flowering shells slowly spread, but the effectiveness of shells is not very satisfactory.

Su Tiancheng's familiarity with firearms surprised Bi Maokang very much, and when it came to flowering bombs, Su Tiancheng's thoughts revealed made Bi Maokang feel empowered.

Su Tiancheng proposed that two kinds of flowering shells could be considered, and there was one kind of flowering bullet, which should be simpler, that is, inside the shell, a lot of small iron beads and the like, such shells could be fired, as long as they could explode on the enemy's head, and the iron beads would shoot everywhere, they would definitely be able to form a huge lethality.

This kind of shell, Bi Maokang has heard of, the design is indeed much simpler.

Just do what you say, a ravine near the military camp was handled by the Jiangning battalion, and outsiders were strictly forbidden to enter.

Since the beginning of October, the rumbling of cannons has been heard in the ravine, and the people around have felt frightened.

The soldiers of the Jiangning battalion also felt surprised, Bi Maokang took office less than a month ago, and actually began to develop it, which is fast enough, although everyone has a very bad impression of the arquebus, but they still have a very good feeling about the cannon.

Bi Maokang's luck was good, or Su Tiancheng and Jiang Ningying's luck was good, and the flowering bomb was soon successful in the experiment.

This is actually an inevitable situation, as early as when he was in the capital, Bi Maokang studied the flowering bomb in detail, and did some experiments, but the lack of silver and two is impossible to expand to do, but when he arrived in Jiangning Ying, there was no such worry. What pleased him the most was that he had a group of skilled military craftsmen under him.

The skills of the military craftsmen are good, but unfortunately they are embarrassed by the oppression of life, and they will not do their best, many military craftsmen can't feed their families, they are doing things, and they are also messing around, and they can't eat enough, who will do their best, but when they came to the Jiangning camp, Yu Lu got a sufficient guarantee, five taels of silver per month, and there are additional rewards for doing well, five taels of silver can not only ensure that the family is fed and clothed, but also can do a lot of things, so from the day they entered the Jiangning camp, all the military craftsmen are holding back their strength, Be sure to bring out the best in your abilities.

The combination of the two, with the guarantee of silver, the results are inevitable.

This is something Su Tiancheng did not expect.

On October 25, all the 1,000 households in the Jiangning camp, including some of the deputy 1,000 households, 100 households, and deputy 100 households, entered the valley, and today they will witness the power of the flowering bombs.

Five red-coated cannons, ten general cannons, ten tiger squat cannons and ten furlong cannons, neatly arranged.

The firing range of these cannons is not the same, the red-coated cannon is the most powerful, the firing range can reach more than seven miles, the firing range of the general's cannon is about three to five miles, and the firing range of the tiger squat cannon and the Furlong machine is mostly about one mile, so it can be said that different effects can also be seen in separate experiments.

Inside the valley, there are many wooden and stone houses, which are simple in structure and seem to have been used for experiments.

The longest-range range of the redcoat cannon was also the focus of this experiment.

At noon, the experiment began in earnest.

The first to fire were the Furlong and Tiger Cannons, and on the opposite side were five wooden houses.

Bi Maokang personally commanded the launch, and the soldiers of the Shenji Battalion were busy preparing for this, and with Bi Maokang's order, the soldiers began to skillfully fill the bombs.

Before everyone could fully see clearly, the cannonball was fired.

With a huge roar, five wooden houses a mile away were instantly hit and exploded, and debris and dust flew into the air.

All the officers of the Jiangning battalion were stunned when they saw this scene, they had never seen the flowering bomb at all, let alone knew the power of the flowering bomb, if such a bomb hit the enemy, wouldn't it be shattered to pieces.

The crowd began to applaud and cheer.

Su Tiancheng was very calm, he was satisfied with such a result, after all, it was a wooden house, after all, it was five wooden houses with twenty cannons aimed at, if there was no such effect, it would be considered a failure.

When the next time to experiment with the Great General's Cannon, almost everyone held their breath.

A loud roar rang out again, and this time, across from the ten great generals' cannons were five stone houses.

The distance is very far, and it is not clear that it is not clear, but the gravel and huge dust that appear in the sky can still be seen by everyone, and after the launch is over, Bi Maokang said that it is safe, and many anxious thousands of households have already jumped over to see what kind of effect it is, of course, they are all following behind Su Tiancheng.

The war horse has long had its ears plugged, and such a huge roar is easy to alarm the war horse.

The five stone houses, already in pieces, the roofs were all out of sight, and they were blown away.

Everyone was still looking at the situation of the stone house, but Su Tiancheng and Bi Maokang were concerned about one thing at the same time, how many pieces were scattered, and how far the stone fragments flew after the shell exploded.

These are two core issues, shock waves and fragments, about the power of the shell.

The soldiers led by Bi Maokang were carefully counting the data, and he was surprised that Su Tiancheng actually cared about such a thing.

The experiment of the red-clothed cannon was what Su Tiancheng paid the most attention to.

Whether it is a field battle, or a siege, the role of the red-coated cannon is extraordinary, it can be said that the red-coated cannon plus the flowering shell, the formation of a huge power, in today's era, invincible.

Although Houjin already has a lot of red-coated cannons, which were captured from the Ming army, or given by Kong Youde and others, but today's red-coated cannons are all solid bullets, and the siege is still good, and the lethality is not very large, the key is not to form a huge shock wave.

When he began to test the cannon, Su Tiancheng paid special attention, and he was even about to go to the nearest place close to the red-clothed cannon, but Bi Maokang refused.

Although Su Tiancheng was the commander of the guard, Bi Maokang was responsible for the development of the flowering bomb, and he must obey the orders given by Bi Maokang.

Five red-coated cannons were fired at the same time, and the huge roar made everyone a little dizzy.

The fly in the ointment was that as the shells were fired, the redcoat cannon also moved the distance and deviated from the original firing place.

An hour later, the key data came out.

The Fur Rang and Tiger Squat cannons fired flowering shells with an average number of 40 to 50 pieces and a radiation range of 100 to 150 meters, the average number of pieces of the General Cannon's pieces was 80 to 100 pieces, with a radiation range of 200 meters to 250 meters, and the average number of pieces of the red-coat cannon was 200 to 220 pieces, with a radiation range of more than 500 meters.

Such data makes Bi Maokang very happy.

Su Tiancheng was a little disdainful, in his impression, the range of ordinary cannons hundreds of years later was more than 10 kilometers, and the range covered was at least more than 1,000 meters. (To be continued......)