Chapter 199: A gun turret with a 30,000-meter caliber should be able to blast a warship to pieces, right?

After all, his initial goal was to enhance the artillery caliber to 3,000 meters!

But the current artillery caliber is only 10 meters!

It seems quite powerful, but it's far from giving him enough security.

After all, when the Battle of All Races ends in three months, they'll face a dimensional strike from an absolutely advanced civilization, let alone the existence of spaceships!

No one knows how powerful the main gun of a spaceship is.

After all, he hadn't seen it on Blue Star.

At least, the caliber of the gun turret must be larger than a spaceship, right?

Otherwise, he'd feel insecure.

To enhance the turret's caliber to 10 meters, he used more than a million One-Star Items.

According to a conservative estimate, to enhance it to 3,000 meters, which is a million items times 300, he needs to spend a total of 3 billion One-Star Items!

Is 3 billion One-Star Items a lot?

For him at this point, it's a lot, but not too much.