The breech gun with fixed bullets, the wear and tear of the bullet on the rifling is low, as long as the technology is sufficient, it can completely drive out the rifling, so that the bullet is rotated when it flies out, and there is a saying of "accuracy", not like a smoothbore gun, which direction can only rely on luck.

However, in this way, "smokeless gunpowder" is the third technology that needs to be pointed out - because the breech gun has to be loaded from behind, no matter how well it is sealed, the user will definitely be smoked by the smoke when the bullet is fired, and even burned.

If you don't have smokeless gunpowder, you can only be a blind shooter, you don't even need to drive a rifling, don't even want to open your eyes and aim, what else do you want to rifle?

After the rifled rear-loading firing pistol appeared, all the bows and crossbows in Bai Tu's impression had to give way......

Even in the Chengji world, unless there is a powerful rate of fire buff like Huang Zhong, or a bug repeater, the rate of fire of the breech gun is nearly twice as fast as that of the bow and arrow, plus stronger lethality, low physical exertion, low bullet cost, and longer range...... How to compare?

Cold weapons still have a chance to load a smoothbore gun in front of them, provided that they are well-trained and fearless in battle, but breech guns ...... That's pure bullying, and even the status of the melee cavalry will collapse!

It is close to the true gas crossbow after solving the energy supply problem, and the cost is not as exaggerated as the real gas crossbow.

It's just a pity that the existing information of Bai Tu, in the world of Chenghime, can only support the more primitive breech gun - if you go further, you need to further improve the tightness, such as covering the bolt and other places that are prone to air leakage.

Well, rubber ......

There is no fossil energy in the Chengji world, and there is no need to think about artificial rubber, and now Gan Ning is still on the way to find Bozhou in the East, before the appearance of the steamship or the real gas ship, Bai Tu does not want him to risk finding the Golden State, so naturally there is no source of natural rubber.

And Huang Yueying swore that there was still a possibility of improving the True Qi Crossbow......

Kindness......

Bai Tu was fiddling with the breech gun and true qi crossbow that he had received from Huang Zhong, while riding on his horse, thinking about these things, and slowly and leisurely about to enter the city.

At this moment, I saw a young man dressed in white, with a slight beard on his chin, and his eyes looking bright......

However, Lu Lingqi and Huang Zhong on the side had already discovered him, and the young man in white had just moved, and Lu Lingqi had already pressed a halberd to his neck!

"Stop!" Lu Lingqi stopped the other party's movements.

The young man in white was slightly startled, but he didn't see how to panic, but spread his hands calmly, indicating that he had no murder weapon and no malice.

Bai Tu also found out about this scene at this time, and saw that this young man was fearless, calm and open, not like an ordinary person, so he said to Lu Lingqi: "Madam, don't be so nervous, listen to whether this gentleman has any advice." ”

When Lu Lingqi heard this, she silently withdrew her halberd, but she still reminded her with some surprise: "You don't want to distinguish between public and private, it's a business now, don't call me Mrs. during the day, but ...... at night Cough. Lu Lingqi realized that there were outsiders around, so she kept silent.

Bai Tu continued to look at the young man in white and said, "Sir, do you have any advice?" ”

When the young man in white saw Bai Tu's calm and frank appearance, he was even more convinced that this was not an ordinary person......

"In Xiayingchuan Shan Fu, I just saw the noble man playing with the murderous things, traveled to the mountains when he was young, and learned the art of observing things, and saw that this thing was ominous, so he stepped forward to remind." Young man in white...... That is, Shan Fu, who stepped forward and bowed his hand to the white picture.

When Bai Tu heard that he called himself Shan Fu, his expression moved, and at the same time, he turned over and got off the horse, and asked him, "Which one is the gentleman talking about?" ”

As for the art of contemplating things mentioned by Shan Fu, Bai Tu is not clear, but from the consequential point of view, the evaluation of "murderous things" is correct, and it is ...... Isn't Shan Fu Xu Shu's pseudonym? Therefore, Bai Tu wanted to probe his bottom.

Among the people recommended by Pang Degong and Sima Hui, there is actually Xu Shu's name, but it is also a pseudonym of "Shan Fu", after all, Xu Shu committed a crime and fled to Jingzhou, and he usually does not use his real name, and Pang Degong does not know where Xu Shu lives now.

"That's it...... If you are not mistaken, this thing should belong to the five elements of fire, and it can hurt people when used, but it is ...... It will also hurt itself. Shan Fu pointed to the musket in Bai Tu's hand.

Bai Tu didn't know what level Shan Fu said about hurting himself, but it was true that the breech gun was easy to explode, so he nodded and said: "Yes, if it is said to be a murderous thing, this thing is indeed a big murder, but with sincerity, kindness, benevolence, and virtue, it can also be used to open the auspiciousness of peace." ”

When Shan Fu heard Bai Tu's words, his eyes lit up slightly, and then he arched his hand and said: "This is a blessing that people are worried about." ”

"No, sir can see that this thing is a big murderer, but what is the way to prevent it?" Bai Tu asked expectantly.

However, Shan Fu's art of contemplating things is obviously not the same as what Bai Tu expected, and Shan Fu only shook his head when he heard this: "Either shelved it in the cabinet, or ...... As the noble person thinks at this time, use it with sincerity, kindness, benevolence, and virtue. ”

In the romance, when Xu Shu met Liu Bei for the first time, he also used the pseudonym of Shan Fu, and as soon as he met, he said that Liu Bei's "Luma" was a hindrance.

It's just that the general opinion is that it is not that Xu Shu really knows how to look at horses and watch luck, but wants to test Liu Bei's benevolence.

Because Xu Shu's method to Liu Bei was to transfer the horse and let it go to others, and Liu Bei was not ashamed of this practice, Xu Shu saw this, so he showed his identity and took the initiative to work.

It's just that...... In the romance, Liu Bei had forgotten about it many years later, and Lu was still in the time when he was plotted, crossed Tanxi, and helped him escape with his life, so when he entered Shu, he gave Lu to Pang Tong to ride, but because Lu's pure white coat color was too conspicuous, Pang Tong was "set on fire" and died of random arrows after being ambushed in Luofeng Slope.

This made Xu Shu's previous "tentative" words clouded with some prophecy.

And......

It is said that the musket held by Bai Tu at this time should not be a weapon in theory, but Xu Shu said that it was a "murderous thing" and said that the five elements belonged to fire, Bai Tu felt that this should not be made up casually.

It's just that Bai Tu heard Xu Shu's answer, but he was slightly disappointed, just now he still had a little expectation - if Xu Shu had any special ability, it would be nice to be able to predict the direction of the development of the musket...... But now it seems that this is not the case.

"Mr. Shan thinks ...... Sincerity, kindness, benevolence and virtue can overcome fire? Bai Tu deliberately made it difficult for Xu Shu to see how he reacted.

"No, the five elements of evil and auspicious are just small paths, but sincerity, kindness and benevolence are the real way in the world, and noble people are naturally not afraid of bad luck." Shan Fu said calmly.

"Sir, so insightful! I don't know if I would like to enter the house to talk in detail? Bai Tu was very satisfied when he heard this, and took the initiative to solicit him.

As for self-declaring identity?

Bai Tu felt that Xu Shu should have eyesight and already recognized him......