Sword of Light: Humanoid Self-Propelled Artillery

Chapter 275 Machine Gun vs. Tank Cannon

It's important to understand that bulletproof vests aren't meant to be worn directly against the body. The bulletproof plates act like a thick shell. When a bullet hits, the energy is first released through the plates before being transferred to the body. In other words, before reaching the body, the bulletproof plates absorb a significant portion of the force, preventing it from directly impacting the person or vest. If the bulletproof plates can't withstand this force, they are penetrated and then strike the body. However, as long as they aren't penetrated, there shouldn't be any serious problems.

As for why a person can't withstand a punch of 200 joules but can withstand a bullet of 2,000 joules, Wang Gensheng even went to the trouble of finding out the reason.

The physics formula that the physics teacher used was wrong from the start. You have to know that forces are mutual. A force applied to an object will only produce two results: one is to push the object to move, and the other is to cause the object to deform.

When a bullet hits a bulletproof vest, the bullet's high speed causes the vest or the bullet to deform, thus absorbing kinetic energy. As a result, the person is unharmed, but the bullet and the vest are deformed. The bullet changes from a long, pointed shape to a disc, or even shatters completely, while the bulletproof vest is left with a small dent.

As for what the physics teacher said, a 200-kilogram motorcycle traveling at a speed of 20 meters per second would have an impact kinetic energy of 2,000 joules, which could even kill a person directly upon impact.

After all, 20 meters per second is equivalent to a speed of 72 kilometers per hour. A collision at that speed would certainly kill a person. But then again, did the motorcycle undergo significant deformation? For example, did it shatter into a pancake like a bullet?

Are pedestrians protected? For example, are they simply placed inside the metal tube?

Wang Gensheng once read a real-life report about how bulletproof vests saved lives. In 2007, a SEAL soldier named Mike Day was shot 27 times while on a mission in Iraq. Eleven of those shots were stopped by his body armor. Keep in mind that these were 7.62x39mm AK bullets, and the kinetic energy of those bullets is more than ten times that of an average person's punch, which is 2,000 joules.

But this soldier not only survived but also killed four men and escaped successfully. For this, he was awarded the Silver Star. He even wrote a biography, which was published, and Americans wrote extensively about him.

As for what the science physics teacher said at the end of the video, no bulletproof vest can stop a Barrett's 12.7mm bullet.

This is also nonsense. Body armor that can stop 12.7mm bullets does exist. The Korean standard for level 13 body armor requires it to stop 12.7mm bullets, and level 14 requires it to stop 14.5*114mm bullets. The Korean BR6 body armor also requires it to stop 12.7*108mm bullets. However, these body armors are relatively heavy, rare, and not practical, but they do exist.

For example, the bulletproof vest that Wang Gensheng is wearing now weighs over 100 pounds can stop bullets from an M2 heavy machine gun, but besides Wang Gensheng, how many other people can move freely while wearing it?

So whether a bulletproof vest can stop a bullet is not just a matter of a few words. You need to consider what kind of bullet it was, what level of bulletproof vest it is, how damaged the vest is, and how many bullets it has withstood before. Only by taking all these factors together can you determine whether the bulletproof vest can stop a bullet.

Using an M16 against NIJ's old Tier I body armor is definitely not going to work.

After Wang Gensheng took care of the M2 machine gunner, no weapon on the battlefield could harm Wang Gensheng's marines.

Of course, there's nothing that can be done if the bullet hits the arm or leg, since apart from Wang Gensheng, Duan Peng, and Wei Dayong, who are all wearing full armor, the rest of the Marines only have breastplates and headplates, not full armor.

Protection of vital areas is sufficient. Shots in the arms and legs may only temporarily disable combat capabilities, and recovery will take time. However, shots in vital areas can result in instant death.

The Polar Bear Regiment lived up to its reputation as the elite force of the Mu Army, with extremely high morale, even though Wang Gensheng had already led the Marines to break through the first line of defense.

None of the soldiers in these polar bear regiments chose to surrender.

Faced with this, Wang Gensheng could only continue his attack, picking off the enemy one by one with his M2 heavy machine gun. Originally, Wang Gensheng had planned to use a recoilless rifle, but after fiddling with it, he discovered that the recoilless rifle had poor sustained firepower and was too slow to reload.

Furthermore, once a shell is fired, unless they are clustered together, it won't kill many people, and even if it does, they won't die for a while.

However, if a soldier isn't killed by Wang Gensheng within 100 meters of him—for example, if he's injured by Wang Gensheng's bomb and then dies after Wang Gensheng has run out of that range—then Wang Gensheng won't absorb any energy, rendering his bombing ineffective. But the M2 heavy machine gun is different; one belt contains 200 rounds of ammunition, providing sustained and powerful firepower.

And most importantly, the M2 has a very good killing effect, except when it hits the arms and legs.

As long as it hits the body, no matter which part, it can have an immediate and fatal effect.

There's no way that a kinetic energy of over 150 million kilometres would not only cut someone in two, but would also tear off a large chunk of flesh, so naturally, they wouldn't live long.

More importantly, the M2 heavy machine gun has strong penetrating power. Even when hiding in a trench, Wang Gensheng can use his mental scanning to shoot through the dirt mound and kill the American soldiers behind the trench cover.

This is something that recoilless rifles cannot do.

However, just as Wang Gensheng led his Marine assault team into the inner defensive perimeter of the Polar Bear Regiment, they discovered twenty-two tanks within the regiment's defensive perimeter.

However, after destroying four tanks in succession, Wang Gensheng realized that he only had four anti-tank grenades on him.

There was no time to regret not bringing enough anti-tank grenades; Wang Gensheng saw that the turret had already been turned around and was now aimed at him.

Although Wang Gensheng's full body armor could withstand 12.7 mm heavy machine gun bullets.

However, Wang Gensheng also understood that it was impossible to withstand the 90mm caliber tank gun of the Pershing tank.

However, Wang Gensheng did not dodge the tank gun's aim. Instead, he picked up his M2 heavy machine gun and aimed it at the tank gun's muzzle.

Before the tank gunner could fire, Wang Gensheng's M2 heavy machine gun had already opened fire.

bump!bump!bump!
Three bullets in a row hit the tank's cannon.

Then, it strikes the impact fuse of the tank gun directly through the barrel.

Thus, the tank shell was detonated inside the gun barrel before it could even fire.

Of course, this was also thanks to the fact that the tank gunner used a high-explosive shell, not a hard-core armor-piercing shell, otherwise Wang Gensheng would not have been able to detonate it!

With a deafening explosion, the tank's gun barrel was destroyed, which then caused the ammunition stored inside the tank to explode.

Then, in a violent explosion, the entire turret was blown away.

Although what Wang Gensheng was doing looked very dangerous, if he was even a little slower and the tank gunner fired first, Wang Gensheng would be blown to pieces.

(End of this chapter)