Bright Sword starts with the grenade flat.

Chapter 39 Anti-tank grenade
  Of course, what's even better is that the grenades in the grenade can are assembled with threads, so Liu Xiu can disassemble the grenades even with his bare hands.

After carefully pouring out the TNT from the grenade and placing it on the paper aside, Liu Xiu also measured the internal diameter of the grenade and began to make a sand mold.

Use the tongs used to burn fire and hold charcoal in the countryside to clamp the pottery bowl into the earthen stove filled with charcoal fire, then leave it and wait for the brass bullet shells in the pottery bowl to melt into copper water.

In fact, it is best to use softer copper or softer and heavier gold for the cone-shaped medical mask. But now Liu Xiu doesn't have gold or copper, so he can only make do with brass.

After removing the sand mold, Liu Xiu couldn't wait to put the still warm conical brass mask into the hydraulic cooling, wipe it clean, and stuff it into the grenade.

And with this brass cover stuffed into the grenade, the grenade that could originally hold 145 grams of TNT can only hold 70 or 80 grams of TNT.

Therefore, in terms of explosive power alone, the power of shaped armor-piercing projectiles is not as powerful as anti-personnel grenades.

It is precisely because of this that Liu Xiucai dared to use the shaped armor-breaking bullets with confidence. After all, this thing is specially used to deal with tanks, and the Eighth Route Army does not even have armored vehicles, let alone tanks. Therefore, it can be regarded as shaped armor-breaking bullets. The grenade was learned by the little devil, so it would be fine and would not be effective at all.

"Brother Zhuzhu, Brother Zhuzhu, give me a grenade quickly. I want to test the power of my treasure!"

But Wang Chengzhu saw that the grenade in Liu Xiu's hand was no different from the one he had taken away before, so he wondered:

"This is no different from the grenade you took from me before!"

Liu Xiu could only say:
  "Oh! Why do you talk so much? Just fire a shot and try it and you will know!"

As he spoke, Liu Xiu took a grenade and stuffed the modified shaped energy-breaking grenade into it.

But just when Liu Xiu was about to shoot over his shoulder, he thought that with his current weight of seventy or eighty, he could not control the recoil of the grenade.

This is the same as the Desert Eagle is not recommended for people weighing less than 80 kilograms.

So after giving the grenade to Wang Chengzhu again, he took him outside the village and let him shoot. Wang Chengzhu's tall horse seemed to weigh at least 150 or 60 kilograms.

tom!
  As Wang Chengzhu pulled the trigger lever, the grenade was smoothly ejected from the grenade. Liu Xiu asked Wang Chengzhu to aim at a green brick wall more than 30 centimeters thick fifty meters away.

Of course, the recoil that once made Liu Xiu do a somersault only shook Wang Chengzhu's shoulders.

There was no way to place the weight, even if Liu Xiu had doubled the physical attributes rewarded by the system, it would be useless.

However, after the grenade hit the brick wall, something unexpected happened to Liu Xiu, because the grenade did not explode after hitting the brick wall. It just smashed a brick and fell to the ground motionless.

Liu Xiu naturally went up to check this situation immediately, regardless of Wang Chengzhu who was chattering behind him.

After Liu Xiu took apart the misfired grenade, he finally understood why it didn't explode.

After the grenade hit the wall, the collision fuse used to detonate the grenade had also been triggered, but the addition of a brass metal powder cover blocked the contact between the sparks generated by the fuse and the TNT gunpowder, so it did not explode.

Of course, this is not difficult to solve. Just open a fire hole at the top of the brass metal cover, just like the bullet shell will leave one or two fire holes at the location of the primer. Therefore, in line with the principle of not wasting money, Liu Xiu did not cast a new brass medicine cover with a fire hole, but directly smoothed the tip of the conical brass medicine cover to expose a small hole.

After placing the impact fuse on the second grenade, he left it and asked Wang Chengzhu to start test firing against the wall.

Boo! boom!
  This time, nothing happened. The grenade fired from the grenade successfully detonated after hitting the blue brick wall.

The result of the explosion also made Liu Xiu very satisfied. The thirty-centimeter blue brick wall was easily penetrated by the metal jet of the shaped armor-piercing projectile.

If this kind of armor-piercing ability were replaced by a steel plate, it would be able to penetrate four to five centimeters!
  Of course, this point-penetration ability may not be so effective on European tanks with armor that is often more than ten centimeters thick, but it is more than enough to deal with the Little Japanese Doudin tank whose armor is only one or two centimeters thick.

This second test also gave Liu Xiu some confidence, so naturally this last grenade had to be used by both Li Yunlong and Zhao Gang to see Liu Xiu's results.

In order to verify the real effectiveness of the test results, Liu Xiu also specially found ten shovels to use as the armor thickness of the Little Devil tank.

After all, the combined thickness of ten shovels is almost equal to or even exceeds the armor thickness of the Little Devil Doudin tank.

"Commander, I'm withering. My shaped armor-piercing grenade has been made. It has been tested before. It can easily penetrate a thirty-centimeter-thick brick wall. However, the armor of the Little Devil Tank is made of iron after all, so I I found a shovel to replace the little devil’s tank armor.”

But just as Liu Xiu finished speaking, Li Yunlong waved his hand and said:

"Okay! Okay, let's test it quickly! If it really works, I will immediately apply to my superiors for meritorious service!"

Liu Xiu stopped talking nonsense and immediately signaled to Wang Chengzhu. Wang Chengzhu didn't talk nonsense either. He immediately saw the shaped armor-breaking grenade that Liu Xiu saw, and then took aim at the shovel fifty meters away.

Boo! boom!
  Wang Chengzhu's artillery skills were still very accurate. He easily hit the shovel at 50 meters. Immediately as the grenade exploded, a metal jet quickly passed through the first shovel, and then the subsequent shovels also suffered disaster and were penetrated continuously, and even The thirty centimeters of blue brick wall behind the shovel was penetrated.

Seeing this result, Liu Xiu knew that he still underestimated the penetrating power of the shaped armor-piercing grenade!

Perhaps a steel plate seven to eight centimeters thick can also penetrate it, but Liu Xiu currently does not have such a thick steel plate in hand for experiments, so he can only estimate the penetrating power of the shaped armor-piercing grenade.

When Li Yunlong saw the penetrating power of the shaped armor-piercing grenade, he happily patted Liu Xiu on the shoulder and said:

"Okay! Okay! Good job. From now on, our Eighth Route Army may not need to rely on people holding explosive packs and Japanese tanks to fight! I will explain to the superiors right now. Liu Wazi, please be prepared. Maybe the superiors will You will be asked to go to the arsenal to provide technical guidance."

However, this time went faster than Liu Xiu thought. The next morning, Liu Xiu was called by Li Yunlong and asked to go to the arsenal to provide technical guidance and tell them how to make shaped energy-breaking armor-piercing bombs.

So Liu Xiu spent the first New Year in Liangjian World running to the arsenal.

In fact, the structure of this shaped armor-piercing projectile is really not that complicated. With a little guidance from Liu Xiu, the next day, New Year's Eve, the arsenal was able to mass-produce shaped charge armor-breaking projectiles.

(End of this chapter)