page_title: BL 8-inch Mk I – VII naval gun
hierarchical_section_title: BL 8-inch Mk I – VII naval gun
caption_attribution_description: Photograph of disappearing gun (a BL 8 inch gun Mk VII) of the South Battery of North Head, in Devonport, North Shore City, New Zealand.
context_page_description: The BL 8 inch guns Mark I to Mark VII were the first generations of British rifled breechloaders of medium-heavy calibre. They were initially designed for gunpowder propellants and were of both 25.5 and 30 calibres lengths.
context_section_description: The BL 8 inch guns Mark I to  Mark VII were the first generations of British rifled breechloaders of medium-heavy calibre. They were initially designed for gunpowder propellants and were of both 25.5 and 30 calibres lengths.
caption: Mk VII on disappearing carriage at North Head, Devonport, New Zealand
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