The plank was naturally experienced by Guo Xingzu last time, and he thought about moving it. Zhou Nan couldn't help but secretly feel ashamed, but he forgot what he taught others.

  Seeing that it would not be over in half a while, Ma Daqiu immediately ordered someone to go up, moved down two chairs for Zhou Nan and Gao Yun, and asked the two to sit down, Gao Yun and Zhou Nan sat side by side, watching Guo Xingzu lead people to arrange in the distance.

  Guo Xingzu led people to lead cattle, sheep and pigs, carried wooden planks, and did not stop when he reached a distance of one hundred and twenty steps, but continued to walk forward, and some of the onlookers had already whispered exclamations. If all these rockets can be fired to one hundred and twenty paces, it can almost be said that a group of shooters like Zhou Fu can form an army.

  When he walked to a distance of one hundred and fifty steps, Guo Xingzu still did not stop, and still led people to continue walking.

  This time, even Zhou Fu began to be surprised, and the guards on the side screamed unabashedly.

  Zhou Nan didn't speak, but leaned forward and looked at Guo Xingzu with wide eyes.

  "Two hundred steps?!" Someone began to scream loudly, their voices full of surprise and disbelief.

  Zhou Nan knew that the step of this era was completely different from the step of later generations. The next step is to take a step forward with the left or right leg; And one step in this era is one step forward for the left leg and one step forward for the right leg in turn. Such a step is about equal to the length of 1.3 meters in the future. Two hundred steps, that's two hundred and sixty meters!

  At a distance of nearly three hundred meters, if you can cast rockets, it is already far beyond the bow and crossbow of this era. You must know that the most powerful crossbow in the Great Song Dynasty is the bed crossbow that is fired by a human twisting turntable, and the range is only 500 meters away.

  If the rocket can have a distance of 300 meters, with the advantage of numbers, it is enough to suppress the bed crossbow that can only be fired once in half a day in the Great Song Dynasty.

  Guo Xingzu was obviously not using a wooden board as an arrow target, but first erected a long wooden board on the ground, then erected two wooden planks on the ground on both sides of the wooden plank, and then placed a wooden plank horizontally on top of these three wooden planks, and the four wooden planks formed a wooden house with a missing wall with the ground, and the gap was facing Zhou Nan here.

  In front of the gap, on the left and right, and behind the wooden plank, Guo Xingzu asked people to tie up cows, sheep, pigs, etc. Guo Xingzu knew that the purpose of bringing cattle and sheep was to test the power of rockets, so the cattle he brought were all old cattle that could not work. As for pigs and sheep, Guo Xingzu has no scruples, and they are all eaten after the test anyway.

  After the arrangement was completed, Guo Xingzu ran back with people, Guo Xingzu said to Zhou Nan, "Dazhai master, this rocket is far away after it is shot out, but the accuracy is not enough, so the villain does not dare to say that an arrow can be shot." Special to the lord of the village. ”

  Zhou Nan nodded and said, "You know best how the rockets are, just go to the audition." ”

  Guo Xingzu immediately called Zhu Xian, and took two crossbows, Guo Xingzu and Zhu Xian opened the crossbow respectively, loaded the rocket, but did not launch directly, but tore off the oil paper on the arrow feather, revealing a twine, Guo Xingzu and Zhu Xian skillfully pulled the twine hard, and then aimed at the front at the same time, only to hear Guo Xingzu shout "Shoot!" The rocket on the crossbow machine immediately departed from the string, and at the same time, a faint trace of green smoke pulled a straight line behind the arrow. The rocket suddenly shook after it was fired, and the rocket, which had slowed down significantly, flew out in the original direction.

  There was a "boom" explosion, and it was impossible to see whether one rocket had hit or both. I saw two clouds of black smoke rising, and the wooden plank that Guo Xingzu had just built flew out a long way away as if it had been suddenly blown away by a strong wind, and the cows, sheep, and pigs tied in front of the wooden plank all fell to the ground, not knowing whether they were dead or alive. Only the oxen behind the planks were still standing.

  Guo Xingzu was even more anxious than Zhou Nan, and after obtaining Zhou Nan's consent, he ran over with more than 20 personal guards. There, Guo Xingzu was busy running before and after, squatting on the ground to check around, and finally commanded everyone to lift the pigs and sheep to the wooden planks that were blown up, and even the wooden planks were carried back with the pigs and sheep.

  I saw that the pigs and sheep on the wooden board were already covered in blood, and they had no strength to struggle, and they were about to die, and there were several wounds on their bodies, and even the one-inch thick wooden board was full of irregular holes. There were also one or two small pieces of iron, which did not pass through the plank, but were embedded in it. It was precisely because of the iron pieces that blew through the wooden board that the pigs and sheep behind the wooden board were also scratched by the iron sheets and were dying; It was only after the iron piece passed through the plank that the power was much less, so the cow behind it did not fall.

  "Dazhai master, the villain has carefully examined it just now, two rockets, one is under the wooden shed made of wooden planks, and the other is shot on the stone a foot away from the wooden shed. The two rockets exploded dozens of pieces of broken iron, and the larger one could pierce an inch thick wooden board and pierce into the body of pigs and sheep; Small ones can hurt the muscles and crack the skin. Two hundred steps away, one of two arrows. ”

  Zhou Nan is already very satisfied with this effect, rockets, what is needed is to launch this kind of rockets intensively at a long distance, so as to produce an effect similar to the artillery fire of later generations. Two hundred steps, whether it is a stationary city wall, a camp and other targets, or a rushing enemy cavalry, this kind of iron that explodes and scatters and can pierce through gold is something that people of this era have no way to resist.

  "Master of the village, this is just a flat shot, if the soldiers are unprecedentedly shot, they will be able to shoot dozens of steps more." Guo Xingzu saw that Zhou Nan didn't speak, thinking that he was dissatisfied with the distance, and reminded him.

  "I'm already very satisfied that this rocket can have such distance and power, how to shoot it, how to send it to them when the time comes, how useful to shoot it." If it was only used for emergency purposes, Zhou Nan was quite satisfied with this improved version of the rocket. If you really want more distance and more power, you can only wait for the future to calm down and find a way to start from steelmaking and create real guns. Even if it can't be used on a large scale, as long as a pike, an artillery battalion is formed, it is enough to shock all directions!

  Earlier than this era, during the Three Kingdoms period, the ancients had already mastered the technology of 100 steelmaking, but the efficiency was too low to produce it in large quantities.

  "How many of these rockets did you make?" Gao Yun asked suddenly.

  "No, it's just that Master Zhu cast a lot of arrows, if the owner of the village wants, the villain can make dozens of them overnight."

  Zhou Nan said to Gao Yun, "Don't be in such a hurry, Brother Gao, they still have explosive arrows, and they can still use them in times of crisis." It's just that this rocket can be made into 500 first, and sent it to Big Brother Gao along with the magic car that he made. After I go, you can do this first. "I like Song Chungui, please collect x Song Chungui.