ps: Thanks to book friend "Don't ask about the Seven Swords" and "Yuan Xing" for the monthly votes.

About three seconds later, a "boom" sounded, and thick smoke and loud noise occurred almost at the same time.

Then there is the vibration of the ground.

Wu Zheng’s first reaction was, is this too powerful?

When a stone as big as an egg fell about one meter ahead of Wu Zheng, Fang Guoan, who came with Wu Zheng, quickly blocked Wu Zheng's front with his body.

Wu Zheng was a little moved and patted Fang Guoan gently and said, "I'm working hard. General Fang doesn't have to worry. There should be no danger ten feet away."

Seeing that Wu Zheng was fine, Fang Guoan stepped back.

Chen Shoujie and Qi Daokun quickly apologized.

Wu Zheng smiled and waved his hand, saying, "It's okay. Be careful in the future. When testing, set a cover around you to ensure safety."

At this time, the smoke gradually dissipated.

Wu Zheng brought people closer to check, and saw that there was a large bowl-shaped pit about one meter square on the ground, and wisps of clear smoke were still emitting from the big pot with two fingers.

The original armor and livestock residues have been blown up by about two or three meters.

The armor has obvious holes and traces of being penetrated by cast iron, and there are even two clearly visible fragments embedded in the armor.

One sheep has been blown into pieces.

Wu Zheng was a little shocked. This was much more powerful than he thought.

But thinking about it, it’s true that one pound and six taels of black gunpowder is no wonder that the stone that was blown away can fall ten feet away, almost hitting myself.

No, it's too powerful.

Not to mention how far you can hit. If the soldier accidentally explodes in his own hands, a small team will be gone.

Wu Zheng said to Qi Daokun: "I have no objection to the structure of the grenade, and I am also satisfied with the power of the explosion. However, the weight must be reduced, the total length must be reduced, and the amount of gunpowder must be appropriately reduced."

Qi Daokun replied: "I obey the order, but if the charge is reduced, the explosion may be much less powerful."

Wu Zheng picked up a piece of cast iron fragments and said, "This cast iron shell is too thick. Try making some of the two or three millimeter thick iron shells to see which one is more suitable. At the same time, reduce the amount of gunpowder by half... Control the total weight to one and a half pounds and a total length within twenty centimeters, so that it is easier for soldiers to throw. Otherwise, like the current weight, I'm afraid it can be thrown by more than ten meters away? If this is true, this grenade will not be of much use, and according to this power, it will probably affect the throwing hand. I don't want the soldiers to be killed by their own grenades."

Wu Zheng remembers that in later generations, he passed the grenade training, and was excellent for 40 meters. There were many strong people who could throw about 50 meters. This distance was what Wu Zheng wanted.

Qi Daokun replied: "As for the orders of humble duties."

Wu Zheng threw down the broken iron sheet and said, "The outer engraving line should be one millimeter deep. This can make the iron shell break more thoroughly when detonated, and naturally the lethality will be greater."

"I have recorded my humble position."

After patting the soil in his hand, Wu Zheng said, "How is the landmine trial production?"

Chen Shoujie replied: "It is being trial production. It will definitely be completed within half a month and will not exceed the prince's deadline."

Wu Zheng nodded and said, "Thank you all for your hard work. I am satisfied with the detonation of this grenade. The weight and length are all blamed for not explaining it clearly. It is not your responsibility."

"Thank you, Prince, for your encouragement."

"After the improvement, prepare fifty training grenades for me, so the warhead does not need to be filled with gunpowder or heavy sand or other heavy sand."

"I have recorded my humble position."

....

On the way back, Wu Zheng was in a good mood.

Although this grenade did not meet Wu Zheng’s expectations, being able to create such grenades means that there is no technical bottleneck to narrow down.

Thinking that musketeers could fight against the enemy with grenades on their backs in the future, Wu Zheng couldn't help but smile at the corner of his mouth.

Fang Guoan was indeed shocked.

He has been in the army for twenty years and has also seen it. He has used throwing gunpowder jars, but the container is a clay pot and a wine jar. Many times, after being thrown out, it breaks into a ground, and then ignites it with a "boom". This power is just to make the surrounding area black and bearded and curled, but there are few fatal ones. This is mainly because after throwing, the time for the detonation of the fuse is difficult to grasp, and everyone's throwing distance is different.

Of course, when you are lucky, for example, when the clay pot is about to land, it is indeed quite a lot of lethality.

But in this way, only one or two out of ten.

But today, Fang Guoan has gained some knowledge. Although he did not see the throw, Fang Guoan saw the iron shell, wooden handle, and the iron shell can prevent fragmentation, and the wooden handle can make soldiers throw further away.

The power of the explosion made Fang Guoan realize that Fang Guoan understood that the new tactic mentioned by Wu Zheng had indeed needed to be changed if such a firearm appeared.

Fang Guoan looked at Wu Zheng hesitantly, and for a while, he said in a muffled voice: "Prince, I have surrendered."

Wu Zheng smiled and said, "Oh, General Fang, why is this?"

Fang Guoan said frustratedly: "Originally, the subordinates thought that according to the current loading speed of the musket, after three rounds of firing, the enemy had already entered a twenty-five-step distance, so the soldiers had no time to reload again, so they could only use bayonets to fight the enemy. But today's appearance of this kind of firearm made the subordinates understand that when the distance between fifteen to twenty-five steps in front of the formation, soldiers could still use this firearm to block the enemy's forward... not only could they prevent the enemy from continuing to move forward, but also allowed some soldiers to have time to continue loading and carry out the next round of shooting. Therefore, the subordinates also felt that the original tactics really needed to be changed. When they thought about it carefully, the prince should have already made up his mind about this. Since that is the case, the subordinates would be at a disadvantage."

Listening to Fang Guoan's unwillingness to admit defeat, Wu Zheng smiled even stronger. Fang Guoan was able to realize the purpose of the grenade so quickly, which really surprised Wu Zheng.

According to Wu Zheng's idea, in field battles, the greatest function of grenades is not to kill the enemy, but to block the enemy.

Only by delaying the enemy's forward momentum can the soldiers create more shooting time and opportunities.

Especially in response to cavalry, when a grenade explodes on the charge road of the enemy cavalry, even if it fails to hit, it will at least cause a short panic of the horse. Once its momentum is disrupted, not only will the pressure of the musketeers be reduced, but it will also give the musketeers an additional round of loading time.

If you have one more round of shooting, you can't underestimate it, as it will directly affect the victory or defeat of the battle.

This is like the speed of swinging a knife on the battlefield. If you can swing a knife once more, your chances of winning will be 10%.

"General Fang is too worried. I have said a long time ago that the winning or losing of this competition is not the most important thing. The important thing is to point out the direction for future training. Therefore, the competition still needs to be compared, otherwise it will be discouraged by the soldiers. As for the winning or losing of the competition..."
Chapter completed!