How are battleship guns made?
Short answerThey are forged, machined, built up, and rifled through a long specialised industrial process that depends on accumulated expertise.
NotesThe answer begins with an enormous metal forging rather than a finished tube that only needs drilling. Specialist machinery mills and shapes the material before the gun is built up in layers and rifled. Each stage demands heavy tooling, precision work, and an experienced industrial workforce. That long process explains why losing a mature heavy-gun industry matters strategically: a state cannot restore the capability simply by constructing a new factory building.