John Breed, Diary and Training diary, item 110

• March 29, 2017 03:14:49 Cheryl Ellsworth

  Primer Percussion Q.F Cartridge No 1
  

  Mark II

  
  

   Diagram of cartridge with the following parts labeled: 

  
  

  3 FIRE HOLES

  PLUG

  ANVIL

  CLOSING DISC

  PAPER DISC

  POWDER

  BALL

  BODY

  CAP

  
  

  Note

      The Mark II primer consists of a metal body,

  screwed externally for a portion of its length to fit the

  primer hole in the cartridge case, the interior is bored

  and recessed to take a cap which is secured by a

  screwed plug, this plug has an anvil at one end the

  other end being bored out to form a sealing chamber and

  contains a soft copper ball to seal the escape of gas

  after firing and relieve the pressure on the cap, the

  sealing chamber is closed by a perforated screwed

Description