Just a single shell fired, and its power already far surpasses the broadside of Fourth-Level Nominal Battleships from the era of sail battleships.
The initial velocity of the main gun shell is 831 meters per second, with a maximum range of 20,435 meters, or 20 kilometers, when fired at an elevation of 16 degrees.
At a distance of 7,980 meters, the armor-piercing shell can penetrate 406 millimeters of belt armor, and at 20,000 meters, it can penetrate 170 millimeters of armor. An oak bulwark is hardly any different from paper in front of such shells.
Each main gun is equipped with 80 shells and a firing rate of two rounds per minute.
Ordinary sail battleships are clearly no match for this kind of weapon.
However, miracle battleships, biological warships with heavy shells like those from the Blood Beast Nest, demonized scale armor of giant species sea monsters, or defensive witchcraft like "Rapid Water Ring," all make good opponents for armor-piercing shells.
