Rotating gas-check

A rotating gas-check (more commonly known as an automatic gas-check) was a copper plate that automatically attached itself to a specially-designed studless projectile of rifled muzzle-loading ("RML") artillery, sealing the escape of gas between the projectile and the barrel and imparting axial rotation to the projectile.[1]

  • 1
  • 2
  1. RML 12.5in Studless Palliser Shell Mk I with Automatic Gas-Check
  2. RML 12.5in Studless Common Shell Mk I with Automatic Gas-Check
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See also

Notes
  1. Ref 1881 pp. 188-190; Ref 1887A pp. 155-156

1. Photos of a used 9 inch automatic gas-check recovered from the sea. http://fortlytton.net.au/?page_id=294

2. Photos of four gas-checks. http://www.victorianforts.co.uk/art/check.htm

3. Photo of 17.72 inch automatic gas-check http://www.bbc.co.uk/ahistoryoftheworld/objects/_GozUMNFTpem-NJXZpFgAQ

References
  • 1881 Secretary of State for War (1881). Treatise on Ammunition Third Edition Corrected to November 1881. London: Her Majesty's Stationery Office.
  • 1887A Secretary of State for War (1887). Treatise on Ammunition Fourth Edition (Revised) Corrected to October 1887. London: Her Majesty's Stationery Office.
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