At the invitation of Xun Chen, Guo Jia arranged a test firing of 200 stones. The simulated city gate has not been repaired yet, so we can only look at the hit rate.

The hit rate was a little far from what Guo Jia said, and it took the eighth test shot to hit the target. However, Guo Jia and the shooters in the baggage battalion didn't say anything, they were very calm, the shooters got together to talk and laugh, and from time to time some terms that Xun Chen didn't understand, Guo Jia took Xun Chen into the car and rushed to the next destination.

"Where do you want to go?" Guo Jia said.

"I heard that Pingyu's ordnance is very strong, I want to go and see it." Xun Chen's face was a little pale, and his expression was not very natural.

"You can see it, but you shouldn't see any wayway. If I had to recommend it, I would recommend you to go to the Sailor Camp and see our new ship, which is absolutely as shocking as a giant catapult. ”

"Anyway, I'm not in a hurry, I'll go to see Tiezuo first, and then I'll see the water master."

"Okay." Guo Jia didn't insist, knocked on the wall of the car, and notified the coachman to go to the iron work.

Xun Chen slowly regained his composure, and he smiled. "Fengxiao, the power of that giant stone thrower is not small, but the hit rate is not as high as you said."

Guo Jia lowered his eyelids, looked at the bamboo cup in his hand, and was silent for a moment. "Youruo, this question may be a bit complicated, and I may not be able to explain it to you. If you want to know more about it, it's best to go to Xu Gonghe. But he may not want to see you, so let me give you a brief explanation. The giant catapult does not mean that every five launches will definitely hit once, but refers to a possibility. If we test fire dozens or hundreds of times, the result will be very close to one out of five or one out of ten, but when we test fire a few times, the deviation will be relatively large. ”

Xun Chen frowned and was silent. Guo Jia said, he can understand some, but he doesn't fully understand. He knew a little bit of arithmetic, but he didn't study such a specific problem.

Seeing Xun Chen's expression, Guo Jia estimated that he didn't understand, and then said, "Let's make an analogy." If you test fire once, there are two possible outcomes. Hit, or not, right? ”

"Yes."

"Then can we say that the possibility of a giant stone thrower is one in two?"

Xun Chen shook his head without thinking, but he understood what Guo Jia meant. A few test shots can't represent the hit rate, Guo Jia didn't lie, but the number of trial productions this time was not enough, and the deviation was a little large. If there are enough times, this number will get closer and closer to what Guo Jia said about one out of five and one out of ten. However, there may not be a chance to verify this statement on the battlefield, even if the deviation is larger, for example, thirty in one, even if the first twenty-nine times do not hit, as long as one hit, the city gate will be broken, and there is no need to test the thirty-first time.

On this point, without Guo Jia emphasizing, he can also firmly believe in it.

According to the speed at the time of the test firing just now, 30 test firings is about a day. In other words, if Sun Ce used this kind of giant stone thrower to attack the city, he could break down the door in one day. This is an amazing ability, once it appears on the battlefield, it may change the entire siege strategy, and Xuyi City is likely to be a witness to this change.

The more Xun Chen thought about it, the more he thought. One of them is the iron bullet that I just used. The surface of those iron bullets was pitted and pitted, and it was clear that they had been used more than once. With such a violent impact, usually the iron bullet will not be able to withstand a few times at all, and even if it does not break into several pieces, it will collapse part of it. However, except for the small craters on the surface, there were almost no signs of large cracks in those iron bullets. It is impossible to fold and forge such a large iron bullet with the technique of 100 steel, and it can only be cast. If the cast iron bullets have such toughness, then the ordnance produced by Pingyu is not to mention.

It's all a technology gap. The more Xun Chen thought about it, the more nervous he became. He looked at Guo Jia, who was calm and composed, and believed in Guo Jia's sincerity a little. Guo Jia is indeed not lying, they do have the ability to win quickly, Sun Ce did not agree to Liu He's peace, and was only willing to accept Liu He's request for peace is confident, and it is by no means arrogant. Of course, having strength does not necessarily mean that there will be a chance to show it, time is of the essence, if Yuan Shao's action to attack Yuzhou is fast enough, Sun Ce may not have time to free up his hand to attack Liu He. This may be the reason why Sun Ce wants to force Liu He to surrender, otherwise he can completely come to the city and make a forced landing, instead of using this method to put pressure on him.

Liu He still has a chance.

Xun Chen secretly comforted himself, and gossiped with Guo Jia intentionally or unintentionally, in order to calm the waves he had just been stirred up by the giant stone thrower.

——

Sun Ce walked into the cabin of the military strategists, took a look, and didn't find Guo Jia, so he asked. "Zhong Hei, Guo Saijiu hasn't come back yet?"

Zhang Cheng, who was on duty, stood up, bowed and said, "Not yet, does the general need me to invite him?" ”

"No, is there any news here?"

"Not yet. However, the sacrificial wine has instructed that important news has arrived in the past few days, and it will be sent to the general as soon as it arrives, and there is no delay. ”

Sun Ce nodded. Now that Guo Jia has already arranged it, he doesn't have to worry about it. Although there are more than 30 military strategies under his command, most of the experienced military strategies have been assigned to various departments one after another because of their merits, and the rest are mostly newcomers, and Guo Jia and Pang Tong are the ones who can really check their abilities. Yan Xing got married, Pang Tong saw that his eyes were hot, and he also planned to take advantage of this break to get married, and rushed to Nanyang in the past two days. Guo Jia went to negotiate with Xun Chen, and no one under him had secrets, so Zhang Si could only temporarily take over.

Sun Ce was also rare to be free, and chatted with Zhang Cheng for a few words. "Are you still comfortable in Pingyu?"

Zhang Cheng was neither humble nor arrogant, and replied calmly. They have moved their families to Pingyu for more than two years and live very stably. Zhang Zhao was the Taishou of Runan, and he had no outstanding achievements, but he didn't make any big mess. Liu He's entry last year was a catastrophe, and Zhang Zhao originally planned to take the blame and resign, but was vetoed by Sun Ce. Their brothers are also living very stable, his younger brother Zhang Xiu is still studying, he is two years early, he has already been out of office, he has been in the Taishou Mansion for a few months, and now he has been recruited by Sun Ce to the military camp. He has just come into contact with the military and has a lot to learn, but he is young, has a flexible brain, can endure hardships, and learns quickly, so he was promoted by Guo Jia to be a military adviser on duty in just two months.

"Ling Zun is still satisfied, right?"

"My father rarely praises our brother, but if he doesn't criticize it, he praises it, and I think he should be satisfied." Zhang Cheng let out a rare laugh: "But what he is really satisfied with is my brother." ”

Sun Ce was surprised. Zhang Cheng's brother Zhang Fen did not like to read, but liked mechanical skills, after a trip to Nanyang, despite Zhang Zhao's strong opposition, he gave up the study of scriptures and devoted himself to the study of wood. He made rapid progress, and two years ago he became Huang Yueying's assistant, responsible for the supervision of the new ship. After Huang Yueying went to Wu County, he went to Wu County for a few months, and after helping Huang Yueying bring out a team of craftsmen, he returned to Pingyu, and is now the head of Pingyu Wood School.

Zhang Fen's grades are very good, but Zhang Zhao has always been unhappy with his original decision, and I heard that he has not met Zhang Fen for nearly a year. Now that he heard Zhang Cheng say that Zhang Zhao was most satisfied with Zhang Fen, Sun Ce was very curious and wanted to hear more about the reason, he wanted to know the root cause of Zhang Zhao's change of attitude. It stands to reason that it is difficult for a person of Zhang Zhao's age and status to change his concept.

"Tell me about it."