Seeing this row of artillery, Su Mu was a little surprised.

The group of people in Momen actually made so many kinds of artillery, and the shapes and designs looked different, which shows that they really put a lot of effort into studying it.

Next to each artillery, there were Momen disciples in ink-colored robes conducting research, and they were readjusting their angles, as if preparing to start a new round of test firing.

"Stop! There is a problem with the shooting accuracy of this thunderbolt, and it almost hit someone just now, so the test launch was aborted! ”

Seeing this, Wei Liangcai hurriedly ran forward and slapped the back of the head of the person who was about to load the spirit stone.

When the Momen disciples heard this, they stopped.

After stopping them, Wei Liang turned to Chen Li and said, "Elder Chen, we have tried many methods, but the accuracy of the thunder has never been controllable. ”

"You can barely aim within a hundred steps, but after more than a hundred steps, the attack will deviate."

In fact, they didn't miss the angle they aimed at just now, but once the attack of the thunderbolt exceeded the range of 100 steps, it would completely deviate from the established track.

As for where to hit, it is simply a matter of luck, and this is the case with the shot that flew out of the test site just now.

This problem has been bothering them for a long time, and if the attack of the thunderbolt cannot control the precise landing point, then the power will be greatly reduced.

What is the use of the enemy standing in front of him, but the attack is 108,000 miles away?

Unless it is an indiscriminate bombing carried out by thousands of thunderbolts, the deterrent power of a single door is really limited.

"Can't aim? So what's the use of this thunderstorm, it can't hit people at all, it's better to use a bed crossbow or something. ”

Tao An was originally quite interested in the thunder, after all, even his father was blown away by this thing.

But as soon as I heard that I couldn't hit people after more than 100 steps, I suddenly felt a little lacking in interest, and no matter how powerful the weapon was, it was no different from scrap metal.

Wei Liangcai blushed and tried his best to argue: "For the time being, just for the time being!" There must be a way to solve this problem, but it has not been found yet. ”

Can't aim?

After Su Mu heard Wei Liangcai's words, he walked to the side of the thunderstorm and carefully looked at this fantasy version of the artillery.

The gun is about three meters long, about one person thick, and the base is mounted on wheels that can be pushed around.

The cannon body is made of some kind of hard metal, and the whole body is red, and Su Mu can feel a slight hot feeling when he gets close.

And on the surface of the thunderstorm, there are quite complex and gorgeous formations, these are things that Su Mu can't understand, he doesn't know the way of the formation in this world.

However, he can probably understand that these formation patterns are equivalent to the existence of circuits, extracting the aura in the spirit stone as an energy source and then converting it into an attack and hitting it.

"It's a bit derogatory to say that artillery, it's an energy cannon, right? In the previous life, there was no energy source like spirit stones, otherwise he would definitely be able to develop a more awesome weapon. ”

Su Mu thought in his heart that no matter in any era, high-quality, large, stable, and controllable energy is a very precious thing.

"There's nothing wrong with the energy transmission, the structure is pretty much the same, look at the internal structure......

Su Mu came to the front of the thunderbolt, and then put his head into the barrel of the cannon to check the structure inside.

As expected, the inner wall of the barrel was smooth.

When Chen Li saw Su Mu's strange behavior, he couldn't help but ask suspiciously: "Young Master Su, what are you ......?"

"Shhhh Don't bother Brother Mu research! ”

Zhuge Bin hurriedly grabbed Chen Li, there was a faint look of excitement and expectation on his face, he knew that Su Mu was looking for the problem of thunder.

Chen Li looked at Su Mu, whose entire body was stretched into the barrel of the cannon, and then looked at Zhuge Bin next to him with an excited face, his dark face was full of puzzlement.

What the hell is this studying?

After a while, Su Mu withdrew from the barrel, and then directly said to Chen Li and the others: "The problem has been found, there is a problem with the barrel." ”

Wei Liangcai shook his head directly when he heard this: "Impossible, this thunderbolt is made by me myself, whether it is the formation inscription or the forging process, it is completely fine." ”

"I'm not saying there's anything wrong with the forging, it's that there's something missing."

Su Mu smiled, stretched out his hand and tapped lightly on the barrel, there was a strange brilliance in his eyes, "The inside of this thundering cannon barrel is missing. ”

When he saw the inside of the cannon barrel, Su Mu knew why the thunder would not be able to aim accurately.

The reason is simple, that is, there is less rifling.

The rifling, also known as the reciprocal line, is the soul of this ballistic propulsion launch weapon.

To put it simply, with rifling, the cannon will rotate at high speed after being ejected, reducing the resistance of the air and greatly improving the accuracy.

Although the Thunderbolt fires energy cannonballs instead of real metal cannonballs, since it can't be fired accurately, it is most likely a rifling problem.

Su Mu didn't know how to explain the principle, but he couldn't find any other reason besides this.

"Rifling? What is that. ”

Chen Li was stunned, he had never heard this word Su Mu say, what does this have to do with the accuracy of the attack?

"Give me a pen and paper, a measuring tape, and a copy of the original design of the thunderbolt."

Su Mu didn't want to explain these to them, after all, this has to be explained and has to involve aerodynamics, which is not something that this group of people can understand, so they can directly start demonstrating.

As soon as he finished speaking, Zhuge Bin immediately handed over the things doggedly, and even moved a table over.

"Brother Mu, it's up to you!"

Zhuge Bin fully believes in Su Mu's strength, and in his heart Su Mu is an omnipotent existence!

Su Mu picked up a pen and paper, picked up the design drawings and looked at them a few times, and made some changes to the design drawings of the barrel in it, adding rifling inside.

"According to what I drew above, make a cannon barrel again, and there is no need to change it elsewhere."

Su Mu handed over the revised design drawings to Wei Liangcai.

The latter took the design and studied it for a while, but he couldn't see any change from before.

Isn't it just to add a few spirals to the inside of the barrel to increase the accuracy of the attack?

"Do what Su Gongzi says."

Chen Li looked at the drawings, although he couldn't see the doorway, but Su Mu said that it was naturally not easy to refuse.