Father Su An was not surprised by Lin Feng's farewell before the operation.

Lin Feng then asked whether ordinary firearm bullets could also receive the augmentation of Holy Water like the Demon-Extinguishing Holy Flame.

After all, having only one Demon-Slaying Special Attack Weapon that wasn't even automatic, despite its fierce firepower, its sustainability surely couldn't compare to an automatic rifle, not to mention Lin Feng's Rapid Fire Cannon.

If this issue could be resolved, the exploration and collection tasks in the ruins, if not completely guaranteed, would at least have an eighty percent success rate.

Upon hearing Lin Feng's question, Father Su An pondered for a while, then got up and walked to a bookshelf on the side, pulling out a magazine introducing light weapons.

According to the date on it, it was still from the Old Earth Era, published in the early 20th century, with a worn and faded cover bearing the three greyish characters for "light weapons."

Lin Feng remembered that when he was in middle and high school, he also liked to read these things.

Back then, there was a magazine called "World Military," which was passed around eagerly among all the boys, loved and cherished.

Father Su An opened a page dedicated to introducing different bullet models.

As he spoke:

"Thousands of years have passed, and humanity has lost so much of the knowledge and technology we once had. The level of civilization in different regions is even more fragmented compared to the Old Earth Era..."

"Some industrial cities have even achieved mechanization, replacing most basic jobs with robots, while in some backward areas, famine runs rampant, people turn into savages consuming each other for food, gathering as hordes of refugees."

"The glorious civilization humanity created back then, under the tide of evolution, has been reduced to this wasteland of Three Days in the Sky, with less than one-tenth retained."

"The industrial technology of firearms is not the strong suit of the Divine Teachings. Here are some ideas you can take a look at."

Saying so, Father Su An turned the magazine lying flat on the table towards Lin Feng, pointing at the special bullets in the bullet model section:

"These, due to their excessive destructiveness and cruelty, are bullets prohibited on humanitarian grounds."

After listening to Father Su An's description, Lin Feng took a brief look and indeed, it was just as he thought...

It was the Dum-dum Bullets produced back then by foreigners in India.

Initially, when they were produced, there was absolutely no consideration for increasing damage, and Dum-dum Bullets were merely a general term for a series of modified bullets.

In this series, some were even intended for gaining some faith bonuses to better kill heretics, carving cross engravings on the bullet tips.

But in reality, making arbitrary modifications to bullet heads without systematic design and testing greatly affects the bullet's power and range.

At the very least, the shape after modification must comply with aerodynamics, capable of slowing the decay of the bullet's kinetic energy during flight.

Otherwise, if purely to increase the damage from tumbling, the original effective range of eight hundred to a thousand meters would be reduced to less than fifty meters, with the shooting precision also declining repeatedly,

doing so selfishly is meaningless.

It would be better to simply use a shotgun loaded with pellets.

When Lin Feng was in middle school, he too was attracted by the so-called magical Dum-dum Bullets.

It later even evolved into the idea of bullet carving technology, engraving hollow patterns to increase damage.

For instance, the mercury-filled bullets in movies, where mercury is injected into the bullet head to cause poisoning, were completely overkill.

Only after gaining more knowledge later on and seeing refutations about Dum-dum Bullets did Lin Feng realize it was all just hype.

Father Su An nodded after Lin Feng expressed his views and understanding, not refuting.

Then he turned to the next page of the section.

The content on this page appeared to be more legitimate.

From the bullet experiment data, to inflict greater damage on a gel mimicking biological tissue, the bullet must leave all its kinetic energy within the target.

In other words, it means weakening the bullet's penetration so that it creates a larger cavity by tumbling within the gel, ultimately staying inside the body.

The damage caused this way would be several times that of an ordinary penetrating bullet.

And this kind of bullet is called a Hollow Point Bullet.

The original pointed bullet head is designed to be hollow.

Generally, to maintain ballistic stability, the hollow center would be sealed with wax, coated with a layer of beeswax or paraffin.

This way, it retains the bullet head's spin, reduces air resistance, and achieves the impact expansion effect.

When a Hollow Point Bullet enters the body, the hollow bullet head will shatter due to resistance.

This changes the bullet's penetration trajectory, causing the entire bullet to tumble within the flesh, damaging organs and bones along the way, inducing severe internal bleeding, while the shattered tip fragments lodge into different directions like shrapnel from a grenade.

So even hitting a non-lethal area can cause severe harm, and merely the work of removing the bullet fragments can immobilize the injured directly.

What is called a Hollow Point Bullet was actually an evolved upgrade of the Dum-dum Bullet, selected as the most reasonable and efficient among various variants back then.

Of course, Hollow Point Bullets were also one of the bullet types banned during the Old Earth Era.

Because of their tremendous damage and power, their stopping effects are outstanding, so although not suitable for battlefields, they are rumored to be used for daily security maintenance and hunting activities.

At the end of this article, besides introducing handcrafted Hollow Point Bullets, there's also an analytical research paper.

Although Hollow Point Bullets made up for the shortcomings of Dum-dum Bullets, they are weaker than ordinary pointed bullets in terms of penetration and effective range.

Especially in penetration, due to the fragility of the bullet head, ordinary steel bulletproof plates can block them, making them more suitable for targets without defense measures.

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