After the picric acid gunpowder test came out, Fan Yubin found the best ratio of gunpowder for each firing of the musket after continuous experiments. He fixed the amount of gunpowder used and adopted the method of loading gunpowder on paper, which not only increased the firing speed of the flintlock rifled gun, but also avoided the explosion of the chamber due to the excessive use of gunpowder to the greatest extent, so as to ensure safety.

After all the preparations were completed, Fan Yubin and Fan Gui secretly conducted several test firings.

The firing speed of the reformed flintlock rifled gun is comparable to that of the flintlock rifle, but whether it is the shooting distance, shooting accuracy, or the power of the shot, it is very different from the flintlock rifle. In particular, the use of a new type of gunpowder picric acid, the power of the flintlock rifled gun is even more amazing. Fan Yubin is a traverser and well-informed, but it doesn't matter. Ke Ling's Fan Gui was dumbfounded, but he was so excited that he didn't sleep well for a few nights.

As the sun sets, the orange-red sunset shines brightly. Fan Yubin took Fan Gui, Yan Wushuang, Zhang Kai, and Ouyang Xiong to the shooting range. Dozens of heavily armed Fan Fu family members had already arrived here to make preparations. They took three steps, one post, five steps and one sentry, and carried out strict vigilance around them. Two housekeepers watched over a long package.

Fan Yubin walked to the baggage, opened the package, and said with a smile: "Let's try the power of these muskets." ”

Several people picked up the muskets one after another, looked closely, and found that there was nothing surprising except that they were very well made. Zhang Kai grinned widely, and said with a smile: "This is no different from those muskets in my house?" ”

Fan Yubin laughed and said playfully: "It's the same, it's different, you only know it after using it." As he spoke, he took out a belt from the package and tied it around his waist, and two leather bags fell from the belt. He took out an iron whistle and hung it around his neck.

Fan Yubin took a gun, put on a loading position, then pulled the lock back, opened the lid of the medicine pool, took out a paper bag from the leather bag on his waist, bit it with his mouth, poured the gunpowder in the paper bag into the medicine pool, closed the lid of the medicine pool, and then poured the remaining gunpowder in the paper bag into the barrel, took out a lead bullet from another leather bag, directly stuffed the bullet into the barrel, and then pulled out the throughbar, stabbed it twice, and inserted the throughbar back. The action is natural and fast, in one go, and it takes a total of two or three breaths.

"That's it?" Zhang Kai said in surprise, his eyes were like cow eggs, his mouth was closed one by one, and his face was incredible. Ouyang Xiong and Yan Wushuang also looked incredulous.

"Alright." Fan Yubin said as he blew the whistle vigorously. The shrill whistle startled several others. Far away, hundreds of paces away, someone erected a wooden target, and after shaking the red and white flags in his hand, the person immediately disappeared, and it should have been a trench or a hole dug next to the target.

"So far?" Ouyang Xiong asked in surprise with a glare.

"It's only about two hundred and fifty steps." Fan Yubin said nonchalantly as he raised his gun (a hundred steps in ancient times is equivalent to 120-130 meters in today's history).

"Bang", the gun went off, and with the deafening gunshot, a faint yellow smoke slowly rose. Fan Yubin blew the whistle. Immediately, a family member flashed out of the target. After taking a closer look at the target, the man waved the white flag high.

"It's flying." Fan Yubin blushed slightly and said with some embarrassment. He reloaded his ammunition and blew his whistle again. The family on the other side of the target also waved the red and white flags, indicating that they could shoot the target, and the person disappeared immediately. Fan Yubin raised his gun, stabilized his mind, and took a closer look before pulling the trigger.

This time I was lucky, I hit it, and it was actually the eighth ring. The family next to the target rode a horse and sent the wooden target over. Zhang Kai, Yan Wushuang, and Ouyang Hai watched carefully, and couldn't help but be dumbfounded. The five- or six-centimeter-thick wooden target was easily pierced by a bullet, and a large hole was blown in the back of the target. Several people were shocked, but also full of interest, and they all followed Fan Yubin's example and impatiently hit the target.

Unexpectedly, the best target performance was actually Zhang Kai. Several others are about the same level as Fan Yubin. In the end, everyone unanimously came to a conclusion. This musket is simple and convenient to reload, has a fast rate of fire and is powerful. About 250 steps can pass through a plank of six or seven centimeters; About 200 steps to break two layers of armor; About one hundred and fifty steps to break through three layers of armor. The most gratifying thing is that after so many shots, not a single shot was dumbfired, and there was no danger of exploding.

Zhang Kai, Yan Wushuang, and Ouyang Hai looked at the muskets in their hands differently. They touched the flintlock rifled guns in their hands, looked at them, and couldn't put them down.

Fan Yubin smiled and said, "These muskets are okay, right?" ”

Zhang Kai and the others nodded again and again, like chickens pecking rice. Ouyang Hai said in his heart: Where can this be, it's just against the sky. If this is equipped with cavalry under his command, even if the opponent is the invincible Manchurian iron cavalry, what is there to fear?

"This is the style of the equipment for the infantry. The muskets equipped for the cavalry were shorter. In the future, you will be equipped with shorter, more convenient handcuffs. It's a pity," Fan Yubin's expression became serious, and he said solemnly: "I can't equip you now!" Because it will take some time for such flintlock rifled guns to be mass-produced. The point is, we are still too weak to fully protect ourselves. If the news leaks, this gun may be robbed, seized, and copied by other forces. Just imagine, one day, our enemies will attack us with this kind of musket, what kind of scene it will be, chilling! So not only can we not use this musket now, we can't even say it. ”

When the four of them heard this, they were all sweating and cold. Yes, I was happy to visit just now, but now I think about the consequences of the leak, it's really chilling.

Thinking of this, the four of them clasped their fists together and said loudly: "Sir, don't worry, we will swear to keep it a secret!" After saying that, they reluctantly put the flintlock rifled guns in their hands back into the package.

That night, Fan Yubin made an exception and did not go to the school, but summoned Ouyang Xiong and Yan Wushuang separately in the study. Come to think of it, there should be no problem with Fan Yuming and Fan Qinglian in the school.

Fan Yubin and Ouyang Xiong talked about the equipment, training, and tactics of the cavalry, to how to make use of objective factors such as mountains, rivers, and astronomy, and gave a detailed explanation of the famous battles of several cavalry versus cavalry and cavalry versus infantry in later generations disguised as Western warfare examples. Ouyang Xiong listened to the Bodhi empowerment, and his mind was opened.