It is not difficult to manufacture the barrel, as long as the steelmaking technology is mastered and the steel produced is tough, then the barrel is considered to be good. The most difficult part www.biquge.info of making a rifle is to draw rifling.

In later generations, the rifling wire can be squeezed out after processing by the machine tool. But in this different time and space, where is the machine tool? There is no way, so you can only use the most primitive method, using a special hook-shaped turning tool, to cut out the material little by little. Slowly form a groove, and rotate the tool or tube to keep the groove at a certain slope during the picking process, so that the groove cut out becomes a spiral rifling. This is the oldest method of making rifling, but this method is too time-consuming and laborious to be suitable for mass production, and in later generations, only guns that require special accuracy have been hand-carved rifling.

But in this different time and space, there is not even the most basic machine tool, so you can only use this stupid method to pull out the rifling one by one. Therefore, it is not easy to make a good barrel, and it takes a skilled craftsman a day to make a barrel of about 19 inches.

The barrel is the hardest part, and the next parts are not easy. In particular, Lu Chengqi wanted to make a more advanced flintlock pistol in one fell swoop, or directly make a rear-loading needle pistol.

But these two guns are not easy to make. The first difficulty lies in the production of reeds, which must be strong and durable. The second gun Lu Chengqi just thinks about it, after all, there is not even thunder and mercury, let alone a fire cap, how to rear-load a needle pistol?

Then we have to settle for the next best thing. The previously made rotary rifle, because of the problem of tightness, the kinetic energy of the bullet out of the chamber is not enough, and there is no rifling, and the range is only 80 steps. Smoothbore guns are almost at this range, no matter how far they go, there is no accuracy, and it depends on luck whether they can hit or not.

After experiments, Tang Xun, Shen Kuo, and Su Song all believed that the practicability of the rotary rifle was low, and although it could be fired in bursts, it had no range and could not restrain the cavalry. Then we can only experiment with other gun types, Shen Kuo's idea is a front-loading flintlock pistol, and the bullet enters through the barrel. After hearing this, Lu Chengqi waved his hand and vetoed the proposal. Although the tightness problem was solved, the reload speed was too slow to be practical. Su Song thought that the wheel of the first rifle would be converted to reloading from the flanks, and Lu Chengqi thought that this proposal was not bad, but how to fire it was another difficult problem. Tang Xun had the most peculiar idea, he thought that a mechanism could be pulled open between the butt and the barrel, and then the ammunition was loaded from behind, and then fired with flint ignition.

Lu Chengqi knew that they were all people with real talents and learning, and if there was no physical appearance, it would be very difficult to convince them. Let each of them make the best gun they think is the best, compare with each other, see whose gun is the most powerful and practical, and then use whose gun is finalized and mass-produced.

Three days later, Lu Chengqi received a report from the ordnance superintendent, saying that the guns of the three people had been ready, and he immediately dropped his work and went to the ordnance superintendent to find out.

At the proving ground, three inspectors were armed with rifles of different styles, all aiming at their own wooden targets. After a rigorous test, the three guns were placed in front of Lu Chengqi, commenting on the merits.

Lu Chengqi asked all three of them to talk about their strengths and weaknesses. Shen Kuo first said: "The rifle made by the minister, the loading speed is indeed as His Majesty said, extremely slow. And it can't be fired in bursts, only one shot at a time. But the tightness was well handled, and the firing range was increased to one hundred and twenty steps. One hundred and twenty paces away, the lethality is almost zero, and even thicker clothing cannot penetrate it. Lu Chengqi knew that this was a loss of kinetic energy, and there was no more lethality.

Su Song pondered for a while and said, "The minister's rifle is loaded from the flanks with a lever, pushed to the back, and ignited with flint. In this way, tightness is ensured, and the firing range can reach more than two hundred steps. It's just that it's not easy to clean the powder tank, and if you use it too much, you can't do it, so you have to disassemble and clean the powder tank. ”

Lu Chengqi's eyes lit up and said, "Yes, there are two hundred paces of range." It's just that the design of cleaning the powder tank is still flawed. ”

Tang Xun was the first to come into contact with black, gunpowder and rifles, so he naturally had his own understanding of rifles. In addition, Lu Chengqi, a reborn person with thousands of years of knowledge, intentionally or unintentionally taught some knowledge of rifles on the side, which still inspired Tang Xun a lot.

Tang Xun said: "The rifle made by the minister is designed to have a powder tank and a loading bullet behind the barrel, and the loading is not slow with a special bullet. Once the bullets and gunpowder have been pushed in, they can be fired. The firing range is also acceptable, up to nearly 400 paces. ”

Lu Chengqi was startled, snatched the rifle in Tang Xun's hand, and said in surprise: "Almost four hundred steps? How can it be so far? Lu Chengqi, who was overjoyed, picked up the rifle and looked at it carefully, and then it suddenly dawned on him, and he had to admire Tang Xun's whimsy. The rifle he made is clearly the famous Mini gun in history! It's just that unlike the Mini gun, the bullet used is not a Mini bullet, so it's a little less powerful.

Lu Chengqi asked people to use lead and cork, and after a short time, he made a cylindrical mini bullet, stuffed it into the chamber of the gun, added gunpowder, and aimed at the huge wooden target that people put five hundred steps away, "Bang!! With a bang, a puff of black smoke came out, and the bullet whistled out and hit the huge wooden target.

Lu Chengqi asked people to check, and Tang Xun was pleasantly surprised to find that such a bullet actually had a huge lethality five hundred steps away. The buckshot deformed and embedded in the wooden target, about an inch deep. If it is shot into the vital point of the human body, it will definitely make people die instantly.

In fact, the reason why the famous gun like the Mini gun is invincible lies in the advanced nature of its bullets, which uses customized bullets, the shape is the same, the loading is much faster, and the power is greatly improved. This kind of bullet is threaded around the body to match rifling, and the middle of the thread is stuffed with animal oil. The bottom of the bullet uses a cork material. When shooting. Gunpowder gases hit the cork. The cork is suddenly propped up after an instantaneous impact, and because the bullet is propped up, it provides a huge amount of kinetic energy to shoot the bullet so far.

Lu Chengqi excitedly fired a few more shots, and the farthest was almost six hundred and fifty steps, which was equivalent to a thousand meters away, which made Shen Kuo, Su Song and Tang Xun all excited.

After Lu Chengqi handed the rifle to the inspector with unfinished intentions, he said excitedly: "Tang Qing, this is the rifle, I want to equip a thousand-strong army in the fastest time, can I do it?" ”

Tang Xun said: "This kind of rifle is not easy to make, and it takes a craftsman three days to make one. I'm afraid ......"

Lu Chengqi said with a smile: "Tang Qing, you can do this, customize the parts of this rifle and divide it into dozens of small parts, each small part is produced by several craftsmen together, and divided into dozens of production groups, then the speed will be increased." ”

Tang Xun patted his head: "Good way, it's still Your Majesty's head!" ”

Lu Chengqi praised: "No, I never thought that Tang Qing could make such an excellent rifle, this time, I have some confidence to deal with the Khitans." And if you want to win it all, you need one more thing. ”

All three of them knew the artillery drawings and said in unison: "Artillery! ”

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