page_title: BL 6-inch Mk II – VI naval gun
section_title: QFC conversion
hierarchical_section_title: BL 6-inch Mk II – VI naval gun / Development history / QFC conversion
caption_attribution_description: English: Photograph of British 8 inch howitzer, a converted 6 inch naval gun, recoiling after firing, Wagonlieu. The 2 small recoil cylinders above the barrel are fully extended. They were incapable of fully absorbing the gun's recoil, and the whole carriage would then move backwards a short distance up the ramp provided by the "scotches" behind the wheels before returning to the firing position. The gun is concealed by camouflage netting and branches. Other photographs in the same sequence&#160;: File:BL 8 inch howitzer firing NLS 74546002.jpg File:Englische schwere Haubitze in Gefecht.jpg
context_page_description: The BL 6-inch gun Marks II, III, IV and VI were the second and subsequent generations of British 6-inch rifled breechloading naval guns, designed by the Royal Gun Factory in the 1880s following the first 6-inch breechloader, the relatively unsuccessful BL 6-inch 80-pounder gun designed by Elswick Ordnance. They were originally designed to use the old gunpowder propellants but from the mid-1890s onwards were adapted to use the new cordite propellant. They were superseded on new warships by the QF 6-inch gun from 1891.
context_section_description: Mk IV and VI guns were widely used in coast defence around the British Empire, both on hydro-pneumatic disappearing mountings and Vavasseur slides (inclined slides that absorbed recoil).
  From 1895 many ships' guns were converted to QF to use the same brass cartridge case and charge as the modern QF 6-inch guns. They were designated QFC for "QF Converted", and the new Mark designation began at I over the old gun Mark e.g. I/IV was the first version of Mk IV gun converted to QFC, II/VI was the second version of Mk VI gun converted.
caption: As converted to 8-inch howitzer.
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