Shi Leiyin, the cannonball of the electromagnetic cannon, did not choose to change, and still used the hard, heat-resistant but relatively light metal from before. In terms of shape, although Shi Leiyin had the intention to pinch it into the shape of a warhead with a directional tail, he finally chose to give up without relevant knowledge. However, instead of using the previous ball type, it was changed to a conical shape like a regular bullet.

The first test launch after the improvement achieved a satisfactory result for Shi Leiyin. With the use of metal barrels, the muzzle velocity of the bullet may have reached several times the speed of sound, and the sound of a sonic boom from the muzzle of the gun was heard almost simultaneously with the sound of the bullet hitting the target. What made Shi Leiyin even more satisfied was that the bullet directly penetrated the fiftieth stone as the subject of the experiment, and then stuck to the boulder behind it like a poached egg.

This time, Shi Leiyin tested two things at the same time, one is that the penetration of the bullet has broken through the previous limit, and the current limit needs to be tested many times. The second is that the principle of the dummy bullet will not be problematic for the time being due to the increased bullet speed, and Shi Leiyin has added a star-shaped notch to the warhead, which is why the bullet does not become a circle after hitting the boulder, but is a bumpy shape like a poached egg, and it is still glued to the boulder. When the warhead is removed, it can be seen that the bullet is not sticking to it, but that the flattened bullet has small sharp protrusions around it, which makes the bullet "grab" on the rock.

Even if the bullet fired by Shi Leiyin's electromagnetic cannon hit the stubborn rock and was deformed, only the warhead was partially flattened, changing from a spherical shape to a hemispherical shape. In this situation, in Shi Leiyin's view, the electromagnetic cannon only has two lethality: penetration and impact. If the target is small or hits the target, the effect will be good. But a large creature like Gu Wulong, with this warhead with a diameter of less than ten centimeters, as long as it does not hit the three key points of the brain, heart and demon core, it will not even be affected much if it hits a hole, and its lethality is too weak. Although Shi Leiyin's knowledge of this bullet is limited to the notching of the warhead that will cause the warhead to explode on impact, the actual effect seems to be good, and the original ten-centimeter-diameter warhead has at least doubled the area after hitting the boulder. Although this was mainly due to the fact that the hardness of the boulder was too high, causing all the power of the bullet to be fed back to itself, Shi Leiyin was able to confirm that such a bullet could pose a sufficient threat against an ancient wurmon of the size of the Ice Tooth Dragon or even the Arashi Dragon.

After a few more attempts, it was tested that the power of the new electromagnetic cannon reached the upper limit of the power of a single shot through stone 55, and stone 64 without causing defensive damage. Of course, this is in the case of using a complete warhead, and the shape of the warhead with the dummy bullet no longer has a penetrating effect on the No. 54 stone, but explodes inside the stone, and the No. 60 stone cannot break the defense, but can only explode on the surface. This made it clear to Shi Leiyin what kind of situation he should use the Dam warhead.

After the cannon had finished its work and confirmed its power, Shi Leiyin immediately threw aside what had been a regular tool and was now a hole card again. Although the magic cost of the new electromagnetic cannon is not very high for the current Shi Leiyin, it is almost ten times the consumption level before the change, and Shi Leiyin has to add nearly a kilogram of weight to the metal required to place the barrel, so Shi Leiyin still chooses to throw this hole card aside.

However, since he had to increase the amount of metal in his body, Shi Leiyin didn't mind using these increased metals to become another means for himself.

You must know that the Steel Slime and the Metal Slime Sleiyin both have Devouring Fusion this time, so what can you do if you don't use it.

Both steel and metal slimes fall under the category of elemental slimes, so although they are made of steel or alloy all over their bodies, they still look soft like normal slimes, and you can even see body ripples due to the change of center of gravity when they move. However, in fact, their bodies are not soft liquid metal, but real hard metal, and ordinary human weapons cannot cut through their body defenses. There are special metals such as Mithril or Odin Hajin in metal slimes, which will make these special metal slimes not only have surprisingly high physical resistance, but also can be immune to nine out of nine magic damage, except for special beings such as natural enemies and Sleiyin, basically nothing can hurt this kind of slime.

Shrayin's use of this slime is also the way they use metal. The previous synthesis of superconducting alloy barrels and new electromagnetic cannon warheads were all made by Shi Leiyin after he had the ability of a metal slime. Otherwise, Shi Leiyin would not have been using the spherical type as an electromagnetic cannonball, ordinary slimes can make the metal in the body into a ball shape, which is the product of Shi Leiyin's consciousness control, and it is generally sucked in and spit out or what, otherwise how could so many adventurers cut slimes to obtain the initial activity funds.

And since the metal slime can make the metal in the body as soft as the flesh of an ordinary slime, Shi Leiyin can naturally do it too. However, because of the fact that he had put too much metal in his body and caused his weight to skyrocket, Shi Leiyin just tried to make a metal shell about thirty centimeters in diameter and less than one centimeter thick around the periphery of his core.

The main purpose of this is to protect one's core from being hit by accidental attacks, and this size is to prevent anyone from taking advantage of this to attack one's core. Of course, there is another reason that if you make metal protection in the outermost layer, you will definitely be strongly protested by Shui Jing until it is canceled, and no matter how soft the metal protection is, it can't be compared with the original super-elastic body.

After doing this, Shi Leiyin no longer cared about the electromagnetic gun-related things, and turned his attention to a place that had been ignored by him before.

Whether it is the Polar Continent or the Pan Continent, there are beasts, monsters, and monsters. Among the beasts, except for special beings such as ancient wurm, they basically do not use magic. Warcraft and monsters, on the other hand, except for some types of accidents, use magic or magic-like means.

What Shi Leiyin has been ignoring is magic, which he has never been exposed to at all, and it is definitely unscientific.