Traditional chemical gun

Of course, the American railgun is more powerful, N times more powerful than Yamato's 460mm main gun! In fact, Yamato was the first in the world in terms of main gun caliber, but its power was not the first in the world during World War II. At that time, the most powerful naval gun in the world was the 406 mm main gun on the Iowa class battleship of the United States. Because the US military got a main armor of the Yamato from Japan after Japan surrendered, the Iowa-class main gun shot through it, and the punctured wreckage is still in Pearl Harbor, Hawaii, USA.

The newly developed railgun in the United States has a power that traditional artillery can't match at all. The two are fundamentally different in principle. Traditional chemical energy guns (such as Yamato's main gun) have low thermal efficiency, but the energy efficiency ratio of rail guns is very high. When the projectile exits the muzzle, the speed is hypersonic (more than 5 times the speed of sound), and the range can easily reach 100 km or even hundreds of kilometers. Traditional artillery, such as the Iowa-class 406 mm main gun, has a range of less than 50 kilometers. In terms of power, the shells of the rail gun can even cause great damage to the target without charging, which is somewhat similar to the effect that satellites in space are hit by oncoming space debris, and the power is huge.