Crossbows vs. Longbows

[Agema]

Some bows have been capable of extreme ranges, but I think we could assume they were specialised for the purpose, maybe for medieval bragging rights. Your average skilled battlefield archer with a powerful long or composite bow would be unlikely to exceed 300-400 metres.

[JimMorrison]

It was my understanding that they, of course, were for specialized use, referred to by terms such as War Bow and Siege Bow (in various languages). Their use (AFAIK) was similar to mortar fire today - indirect bombardment across valleys or over walls to harass and demoralize an opponent that is trying to maintain a defensive position.