Lu Chengqi was also very curious, and spent a lot of money casting artillery, how many cannons were cast by the two of them, and immediately said: "It's okay, I want to see what kind of rear-loading artillery you cast looks like." Pen ~ Fun ~ Pavilion www.biquge.info"

As soon as the mouth of the Holy Mouth is opened, the Holy Decree is issued. Tang Xun didn't hesitate, so he retreated and went to find someone to move the artillery. In a short time, more than 20 strong craftsmen worked together to push five cannons, thick or thin, long or short, in carts.

When Lu Chengqi saw it, he knew that it was all substandard products. There was even a cannon in it, the body of which was cracked. Such artillery, I'm afraid that it didn't fire a single shell, and it exploded first. No wonder it's a waste cannon, it turned out to be such an artillery!

One of them was a rear-loading gun at a glance, and it looked very much like a large version of the Hongxiang rifle. This is probably because Su Song and Tang Xun saw that the Hongxiang-style rifle was so powerful, and estimated that if the Hongxiang-style rifle was enlarged, it would definitely be able to gain greater power.

But what they didn't expect was that such a non-proportional enlargement would be a millimeter of difference. The cast artillery, not to mention the increased power, is not even comparable to the range of the Hongxiang rifle!

When Su Song introduced their "achievements" one by one, his face was full of helplessness. He also knew that making guns and casting cannons were two different things. The barrel can also be cast by iron mold, while it is still molten iron, poured into the iron mold, the two sides are closed, and after the molten iron is formed, the barrel is formed. This method was invented on the original process, saving time and effort. Although the strength of the barrel is not satisfactory, once the barrel is damaged, it can be replaced immediately. And the damaged barrel can also be smelted into molten iron and cast into a barrel, which is not a waste. The casting cannon is different, and the Hongxiang rifle can also be cast separately, because the rifle is originally assembled. But if there is a slight leak in the artillery, the whole gun will be useless. Artillery cast separately is very prone to bubbles, and in this era of backward cast iron technology, assembling artillery seems to be an impossible task.

After failing again and again, Su Song and Tang Xun summed up their experience and adopted the clay mold casting method to cast the gun body at one time, tightly fitting, without a trace of air leakage, and there were almost no bubbles. Such an artillery was beyond the expectations of Su Song and Tang Xun, and the first experiment hit a range of ten miles. The earth-shattering sound frightened the surrounding farmers, and the thunder on a sunny day made them talk about it, some said that the thunder god was born, some said that the unfilial son of the neighboring village was struck by lightning, and some were even more ridiculous, saying that they had caused it...... Well, the latter is obviously fooling people, just like in a movie clip in the later generations, a beggar grabbed a little boy and said: "Boy, I see that your bones are amazing, a spiritual light comes out of the heavenly spirit cover, and you have been practicing your muscles and bones at a young age. Seeing that I have a fate with you, this "Rulai Divine Palm" was sold to you cheaply, and I only charged you ten yuan. From now on, the task of maintaining world peace will be entrusted to you, okay? ”

Fortunately, the inspectors went around and walked around the countryside and said that this was the latest secret weapon tested by the Ordnance Supervisor, which was specially used to fight the Khitans. Only then did the panicked farmers calm down, and they said one after another: "With such a divine thunder, the Khitans will definitely not be able to please this time!" ”

"After all, it's still the wisdom of the saints......"

"Who says it's not, after the agricultural tax is lowered, which family will have a hard time?"

"It's just ......"

……

Of course, Lu Chengqi didn't know these things, he was carefully observing the five waste cannons at the moment, and according to Su Song, two of them couldn't fire shells at all. The remaining three guns all had air leaks, and the shells couldn't hit far, even the bed crossbow was inferior.

Lu Chengqi took a closer look and found that this was indeed the case. For rear-loading guns using the assembly method, the cannon body cannot completely block the air holes, the black and gunpowder cannot be fully burned, and there is no strong explosive force, and the shells weighing a few catties will naturally not be able to shoot far.

It's just that Lu Chengqi has to admire the imagination of Su Song and Tang Xun, and many designs are ingenious. In the case of the rear-loading gun door, it has a design similar to the door hinge, and when the shell is loaded, the gun door is lifted. It's just that the problem of air leakage is not solved, and no matter how spiritual the design is, it is just an ornament.

The design of the remaining three guns is similar, and a lot of effort has been put into plugging the air holes. It's just that the technology in this era is really limited, and even if Su Song and Tang Xun try their best, they still can't solve this problem.

Later, the quick-witted Su Song pondered: "Maybe Your Majesty's idea is not wrong, with our own ability, such a rear-loading artillery can't be cast at all." Tang Shilang, why don't you try to block the back and load gunpowder shells from the front, what do you say? ”

Tang Xun also had no choice but to use a dead horse as a live horse doctor. I never thought that such a cannon would be really miraculous, and it would be successfully cast in one attempt. The back of such a gun was completely blocked, except for a small hole for putting a lead.

Listening to Su Song's explanation, Lu Chengqi finally understood the problem. The design is simple, but extremely practical. Success is expected, but if this is satisfied, the artillery will not improve. Lu Chengqi still felt that the rear-loading gun had a great advantage in the rate of fire.

Shen Kuo, who was listening carefully on the side, suddenly said: "The minister has a method, I don't know what Your Majesty thinks." This sentence was obviously for Lu Chengqi, but it was actually said for Su Song and Tang Xun. After all, it was the two of them who were really in charge of casting cannons, not Lu Chengqi.

After experiencing the turmoil in the imperial court, Lu Chengqi, who now has a deeper understanding of human feelings and sophistication, also understands what Shen Kuowei wants to say. The three of them worked together, with Shen Kuo in charge of the design of the new warship and Tang Xun in charge of casting cannons. Because Su Song is an all-rounder, he coordinates the overall situation.

Now that there is a problem on Tang Xun's side, even if Shen Kuo has the heart to help, he is afraid of robbing them of their credit and hating them. Only when Lu Chengqi gave an order could he participate in the cannon casting "justifiably".

Such twists and turns, if it was Lu Chengqi before, he would definitely be unaware. But political struggle is the most tempering person, Lu Chengqi, as the emperor, if he is simple-minded and not accustomed to in-depth research, then he is very unqualified as an emperor.

Such a thought, now Lu Chengqi only needs to think about it in a blink of an eye, and immediately smiled: "The three of you are the talents I rely on the most, Shen Qing has any whimsical ideas, but it doesn't hurt to say it!" (To be continued.) )