Bailiyan doesn't know how much money the Guangxin Mansion has fallen over the years, but even at the price of a six-pound cannon and 40,000 inches of silver, the Guangxin Mansion can't have an artillery team.

However, in the more than ten years that Jiang Rong has been in charge, she has secretly posted a lot of things to her mother's house, and helped to take away some goods, but it is not enough to equip a sophisticated artillery team.

In fact, this is not the case, not to mention the extremely poor accuracy of the breech gun, even if the Xian army uses the firing table, the accuracy is still unsatisfactory, in addition to the solid projectile can be effective in attacking the city wall, the field bombardment can only be used to deter morale at best, and very few people really die from the shells.

The effectiveness of solid projectiles is very limited until fuzes, fragmentation munitions, flowering shells, shrapnel shells, and explosive bombs mature.

Of course, grapeshotfires are usually used to suppress the formation of dense charges, but even if large-caliber artillery fires grapeshots, its effective killing distance is only about 150 paces.

Equipped with high-quality infantry armor and iron armor, the grape projectile pouring distance is only less than 100 steps, more than 150 steps, the grape projectile is affected by the elevation angle of the shot, and it diverges wildly, and the pouring force drops sharply, and finally only the inertial kinetic energy is left to drive the projectile iron to fly, and when it drops to the height and hits the target, the power is very fragile.

By the time it was necessary to use grapeshotfire to suppress, the artillery position of the enemy would have been exposed to the enemy infantry, and as long as it withstood a burst of artillery bombardment, the artillery line would be finished. Therefore, grape bombs are not easy to use in frontal field battles, and in most cases they are more suitable for naval battles and defending cities.

Of course, the maturity of grape bombs is due to the emergence of grenade shotguns, and the emergence of grenade shotguns has completely solved the problem of grape bombs having their potential energy plummeting.

When the shrapnel is fired to the top of the enemy's head hundreds of meters or even thousands of meters away, the explosives in the bomb body detonate the projectile body, and the iron in it rushes to the ground target like rain, killing and injuring in a large area, and can also be loaded with arrows, and the effect is better than that of simple steel balls and iron.

As far as the current artillery is concerned, there is not enough quantitative density, and it is difficult to gain the initiative on the battlefield with artillery.

After talking to Chen Yunfeng for a long time, he didn't drink less tea, but Chen Yunfeng still grinded hard and didn't let go:

"Uncle, the princes of all countries have now made firearms on their shoulders, why don't they build them alone?"

"That thing is not practical, and there are too many flaws, with one or two layers of wet and thick quilts stacked together, it can be easily blocked fifty or sixty steps away, it is better to have a strong crossbow, Yongxing City will be better in the future, there is no plan to imitate it at the moment."

As soon as the words fell, there was a rush of footsteps from the attic, and the small door on the third floor was knocked from outside, and Jiang Jie's voice came:

"My lord, General Lu has arrived, and he is waiting in the front yard, very anxious."

"Got it, I'll go right away." After instructing Jiang Jie, Bai Liyan looked at Jiang Rong: "I'll go see Lu Gao, if there's nothing to do, you might as well take Mr. Chen to the department store to have a look." ”

"Well, I'll arrange it."

Guangxin has a unique seaport advantage, the first step is to restore agricultural production by teaching the field method, in the future, you can focus on the development of maritime trade and coastal light industry economy, before the appearance of practical trains, the efficiency of sea transportation, water transportation is much more efficient than animal power, horse-drawn carriage transportation.

Even the four-wheeled baggage carts in Yongxing City, in a sense, are a helpless means of transportation, and if the transportation is extended in all directions, the transportation by land can be much less. Of course, the power of the unicorn is a different story.

Asking Jiang Rong to arrange for Chen Yunfeng to go to the department store is also to let him experience the benefits of "replacing government with business".

At the beginning, "replacing government with business" was actually designed for Guangxin, and the appropriation to Yongxing City was not completely matched, and it was also a waste of nine cows and two tigers to have today's results.

However, time has passed, no one expected that the situation would suddenly change so much, first the Black Turban Rebellion, then the Southern Expedition, and now facing a strong enemy in the northern hemisphere, Bailiyan did not expect to be able to come to this point, which is completely different from the original intention of developing a pure economy.

If Guangxin can be used as a coastal industrial center, its unique geographical location, obviously more convenient than Yongxing City, at least three to four years can be shortened, can develop to the level of today's Yongxing City, because Guangxin's population base is placed there, there is a population and talent base resources.

Of course, compared with the administrative support of King Xian, Guangxin is still smaller, which may also be the biggest congenital deficiency of Guangxin.

Leaving the teahouse and walking to the front yard, Lu Gao waited anxiously in the inner hall and frowned:

"General Lu, why is it so urgent, I don't have to come in person."

"Just got an urgent report of the military situation, the Changsun Kingdom has recovered all the Nuotang County, and the rebels of Gaochu County have withdrawn south to Shutian and Qingtian Counties, and in less than half a month, Changsun can recover Gaochu County."

"So fast!"

Bailiyan was surprised when he heard the news, because last month, Changsun Jun was still fighting hard in Tongxiang County, and in less than a month, he conquered Tongxiang and took the glutinous soup, which was too fast.

"Didn't the Jin army join the war?"

"No, according to the report, the Changsun Army dispatched the Tianwei General Cannon, the power is very amazing, the range is farther than my Yongxing cannon, and it also has a sixty-three-kilogram projectile cannon, which can send sixty-three kilograms of projectiles to six or seven miles away, and any city wall only needs such a projectile to hit it, and it will collapse half."

"Shhh...... Hell, is it ......"

"Yongxing Hou thinks of something."

"The king is in a hurry to summon Benhou into the palace?"

"Exactly, the king is worried about the regeneration of variables, so he urgently summons the marquis into the palace."

"Okay, talk as you walk along the road."

Bai Liyan only thought at this time that it must have been Changsun Guo who pulled out the cannon on the captured heavenly ship ten years ago.

According to the information obtained by the royal ke's spying, this "heavenly ship" has a total of 109 artillery pieces of various calibers, most of which are 11 jin guns, 17 jin guns, and 23 jin guns, in addition to a number of 41 jin guns, 63 jin guns, and 6 jin guns, and the royal guests stole back one 11 jin and 23 jin guns, the former with a range of more than three miles, and the latter with a range of more than five miles.

The normal charge range of the Yongxing iron 12-pound iron cannon is more than two miles, and the range of the 18-pound cannon is only about three and a half miles. The sixty-three-pound cannon with a range of more than six or seven miles in Lu Gao's mouth must have been the heavy guns captured on the heavenly ship.

At this time, King Xian and the others were restless in Bailing Garden, and most of them were shocked by the range of six or seven miles.

Seeing King Xian, Baili Yan bowed and saluted:

"The minister is the king!"

"Aiqing is exempt, this is the battle report just sent, Aiqing take a look."

Bailiyan took the battle report and read it very carefully, attacking Nuotang County, Changsun Army dispatched more than 200 artillery pieces of various types, of which there were as many as 150 guns with a range of more than three miles. The content focuses on a kind of black light cannon, the Tianwei General Cannon.

Looking at the description, it can be inferred that this so-called black light cannon should be painted with a special anti-rust paint to prevent rust and salt spray, that is, the batch of artillery pulled down from the heavenly ship, there are about 100 guns in total, and the remaining more than 50 guns should be 23 catties of cannons made by Changsun Guo himself, so as to shoot three miles away.

Changsun Guo has more than 10 years of recorded information to follow, a total of more than 500 iron cannons of various calibers have been cast, an average of less than 50 per year, of which nearly 200 are sold to the outside world, and more than 300 are used by themselves.

Because naval guns are affected by the curvature of the earth, the firing range and the ocean currents on the sea, the firing range of the ship's breech guns is too far and has no accuracy significance, so the firing range of the breech guns is actually inferior to that of infantry military guns.

Although the firing range of the 63-pound naval gun is six or seven miles, Bai Liyan believes that the range limit of the army artillery of an unknown civilization in the northern hemisphere may be close to ten miles, or even farther, especially the fortress artillery, the firing range will be even farther.

After watching it for a long time, King Xian couldn't wait to ask first:

"Aiqing, can the Tianwei General Cannon in the news be true?"

"Back to the king, it's basically true. Does the king know the rumors of the heavenly ship of the eldest grandson eleven years ago? ”

"I have heard a little, it is said that the appearance of the Central Plains artillery and black fire powder is from this heavenly ship, and it is also said that it is a holy relic given by God to the lord of the eldest grandson."

"Don't hide it from the king, this ship does exist, and a few years ago, the minister also stole two cannons and a number of firearms from the hands of Changsun Guo, so as to use this as the mother plate to imitate the Yongxing cannon, but the overall is still inferior to the mother plate artillery.

And the Changsun Guo has more than 100 Tianwei general cannons, the range is three miles away, this time to concentrate more than 200 artillery, only one or two days, the city wall can be collapsed, the defenders have no power to parry, otherwise it is absolutely impossible to attack the glutinous soup so quickly. ”

"Then can Aiqing make a replica of this kind of artillery?"

"I'm afraid not right now. Yongxingcheng has only been researching a new type of artillery iron for two years, and it has just begun to invest more than hundreds of thousands, and with the current progress, it will take at least two or even three years to successfully develop it, and the range of artillery will be at least doubled. But at the moment, it is absolutely impossible, even if the artillery is increased, it will never exceed five miles. ”

"But I'm afraid that the eldest Sun army won't be able to wait a year before it will invade the Sun country, and the land of the four counties of the widow will still be widowed at that time!"

King Xian was worried that the Changsun army was advancing too fast, and entered the three counties of Ganfu, Shangguan and Wanchuan before the Xian army, so that the Xian army and the Gongliang army in the south became cannon fodder to attract firepower to the Changsun army, and at the same time, he was more worried that in the future, Changsun Guo would rely on the cannon of General Tianwei to retaliate against Xianguo.

The former is highly likely, but the latter is unlikely.

One is that there are not many artillery and heavy artillery captured by Changsun Guo, and no more than 10 guns can be fired five miles away, and most of them are at a range of three to five miles.

Second, Changsun does not have the ability to imitate the industrial capacity of the Tianship's forty-one jin cannon and sixty-three jin cannon, even if it is made, with the casting and smelting capacity of Changsun Country, not to mention the high scrap rate and cost, the firing range is far less than six or seven miles, and it is very good to have five miles. Otherwise, twelve years have passed, and Changsun Guo would have copied this kind of heavy artillery, which shows that it has no technical ability.

Third, Changsun Guo can not imitate cannon steel, Bailiyan has carefully studied Tianchuan cannon steel, in terms of physical metal properties, it is a kind of soft steel, the performance is between A3 steel, high-carbon steel and easy-to-cut iron, the texture is soft but the toughness is extremely high, the pressure resistance is strong, and the melting point is high.

Worse still, this is a soft iron with a high alloy content, and its density exceeds 8.3, much higher than the 7.2 of pig iron and 7.5 of wrought iron.

Bailiyan personally analyzed the physical and chemical analysis and determined the iron-based alloy containing a small amount of chromium, silver, boron, calcium, carbon, copper, and trace amounts of nickel, manganese and zinc.

Even if you know the ratio of smelting ingredients, you can't imitate it if you don't know the smelting process and heat treatment process, and Changsun Guo can't imitate it at all.