Talk:Gran Chaos Empire/@comment-2600:1:C528:FF9D:0:55:90D1:F701-20181028234300/@comment-9261410-20181029130734

KE = 1/2Mass x velocity SQUARED. But yeah, that does make a big difference between a subsubonic arrow vs a bullet going twice the speed of sound. And one of the reasons why they don't use cannons against the Anti-Magic Corps is because cannons can't aim at a human-sized target very well. But if we were to use the M777 Howitzer at 24 km away (4..3 leagues in old terms), that would be OVERKILL.