"What does gunpowder ignite?" Zhang Nan continued to ask.

"Of course it's fire, ah... I understand, I used flint, right?" Li Er said with a smile.

"That's right, it's just using flint to ignite the gunpowder, so that more projectiles can be produced in a shorter time." Zhang Nan said.

Just as the few people were talking, Bingzhi also brought Li Er, Zhang Nan and Liu Bing to the Tiangong Department, until Li Er was stunned, and the few people finally arrived at the place.

"I said that the troops arrived, your Tiangong Department has been repairing this route, right? It's too tortuous. After I walked around, I can't even guarantee that I will continue to walk from outside again before I can get here." Li Erdao.

Hearing this, Bingzhi also smiled and said, "When the emperor said, this thing was designed by Mo Zu himself. Unless he was familiar with the Qimen Dunjia technique, it would be difficult to get out of it. However, Mo Zu also marked some secret symbols on the road to help find the way, otherwise the villain would not be able to find it for a while."

"Haha, it seems that the Tiangong Ministry is really the safest place in the world, and even the Qimen Dunjia is used." Li Er laughed out loud after hearing this.

Although Bingzhi and Zhang Nan did not understand where the funny point of this thing was, Comrade Li Er laughed. It seemed that they couldn't argue if they didn't laugh, so they could only laugh with Comrade Li Er.

Bingzhi soon took Comrade Li Er to their test site, and then picked up an unbeautified original flintlock rifle from his desk and handed it to Li Er.

"Your Majesty, this thing is just a gun."

After Li Er took the Suiqiu gun, he also showed a look of surprise and said, "This thing is much bigger than I thought." After all, Zhang Nan's desert eagle was like a child compared to this Suiqiu gun.

The gun that Bingzhi fired for Comrade Li Er was not only long, but also very heavy. The handle part was originally made of wood, which would be much more convenient to use, but Bingzhi directly used metal as the handle.

It’s not that Bingzhi didn’t know how to reduce weight, but when it was made, Bingzhi was easy to use machine tools, so he directly used metal. Anyway, this thing is just a first-generation product, as long as it can ensure its power.

As for beauty and practicality, it should be left until the power meets the standard before solving it.

"Oh? What is the groove under this pipe used for?" Li Er observed carefully and soon found a small groove under the barrel of the gun that was fired by the army.

"If you go back to the emperor, you will be used to hold a knife." The soldier said.

"Prepare a knife?" Li Er asked in confusion.

"That's right." After Bingzhi said that, he took out a bright and slender knife from somewhere and handed it to Li Er.

Li Er also took the knife curiously and tried to install it on the groove. Li Er installed the knife on the groove without any effort.

Now that the gun is fired, it becomes a weapon that combines heat and cold weapons.

"This thing is also clever." Li Er nodded with satisfaction and said.

"This gun fired gun must be reloaded with gunpowder every time after shooting the projectile, so in order to prevent the enemy from getting in front of him, the villain also installed a knife on it. If the gunpowder does not work, the knife can still be used." Bing Zhi said.

"The thing is pretty good, but can this thing be made smaller? After all, this thing is still a bit inconvenient to carry." Li Er said after scratching his head.

In fact, Li Er wanted to have this thing, but now what the Bingzhi gave him obviously only met the combat standards, and did not meet Comrade Li Er's carrying standards.

"Of course this is OK. The villain can make this thing smaller." Bingzhi patted his chest and promised.

"That's good, okay, let's show me how powerful this thing is." Li Er said, and handed the gun in his hand to Bingzhi again. Bingzhi nodded, knowing that Comrade Li Er was going to let him give a demonstration.

The Bingzhi did not hesitate. He skillfully took out a small paper bag and prepared to tear the hole with his teeth, but it was stopped by Comrade Li Er.

"What is this thing?" Li Er curiously pointed the small paper bag on his hand.

"If you want to go back to the emperor, this thing is a projectile loaded with a gun. In order to facilitate loading, the projectile and gunpowder were put together." Bingzhi replied.

"Oh? This method is smart. Did you think of this too?" Li Er said in surprise.

After hearing this, Bingzhi scratched his head embarrassedly and said, "This is not, this is what Lord Zhang thought of. Originally, the projectile and gunpowder were separated from the gunpowder at the beginning. First, the projectile was filled with gunpowder, then the projectiles were loaded, and then the bullets were packed with a stick to make them solid before they could be fired. However, if Mr. Zhang came up with this method, it saved a lot of time and effort. In the past, it used to fire two bullets, but now it could shoot three or even more."

In fact, this thing is of course not original by Zhang Nan, and it was also copied by Zhang Nan from the existing history of shooting guns. After all, this thing does not involve any technological leapfrog aspects, so it doesn't matter to Zhang Nan.

When the flintlock rifle was first invented, modern shelled bullets were not invented, and they were all equipped with flintlock rifles in front. The gunpowder and the bullets were wrapped in paper. In order to prevent the gunpowder from being wet by rain or getting wet by water, it was packaged with butter or lard paper.

When loading, the paper with animal oil will be tougher and has no edges to tear open. Therefore, biting is the fastest way.

After biting, pour part of it into the biting room for ignition gunpowder. The rest is poured from the muzzle as launching medicine. Finally, put the round bullet in and hit it with a straight bar. The straight bar is a long iron bar with a notch at the end. After hitting it with a straight bar, the bullet will undergo a slight deformation and will be closely linked to the gun chamber and will not roll or fall out in the gun chamber.

Zhang Nan copied this method directly intact.

"Okay, show it to me. If the power can reach my expectations, I will reward you a lot. Of course, if it doesn't meet me, I will also reward you." Li Er said with a smile.

It seems that Li Er is still interested in the weapon of firearms.

When Bingzhi heard that there was a reward, he nodded suddenly, and then he bit open the packaging of the bullet bag with a happy look on his face, and then poured the bullets and gunpowder into the barrel of the gun.
Chapter completed!