title: Attached gas-check
text: # Attached gas-check
  
  An attached gas-check was a copper plate that was physically attached to the base of a studded projectile of rifled muzzle-loading ("RML") artillery, sealing the escape of gas between the projectile and the barrel.
  
  ## Gallery
  
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  * RML 12.5in Studded Palliser Shell Mk III with Attached Gas-Check Mk II
  * RML 12.5in Studded Common Shell Mk I with Attached Gas-Check Mk II
  * RML 12.5in Studded Shrapnel Shell Mk I with Attached Gas-check Mk II
  