John Breed, Diary and Training diary, item 79

• March 27, 2017 15:50:53 Cheryl Ellsworth

  18 Pounder Q.F. Gun

   
  

  Notes

  Material                                                             Steel (wire construction)

  Weight (with breech fittings)                          9 cwt

  Length (total)                                                    96.96 inches

  Calibre (diameter of bore)                              3.3 inches

  Bore { Length (to face of breech screw)       92.62 inches

   
  

  Rifling: 

  { System       Polygroove modified plain section

  { Length        80-232 inches

  { Twist           Uniform 1 turn in 30 calibres

  Grooves { Number     18

                  { Depth         .04 inch

                  { Width         .384 inch

  Firing Mechanism          Percussion

   
  

  The gun is made of steel and consists of the "A" tube a

  series of layers of steel wire, jacket, and breech ring. The

  "A" tube extends from the rear end of the chamber to the

  muzzle. Over a portion of the "A" tube are wound successive

  layers of steel wire. The jacket is fitted over the exterior

  of the wire and "A" tube, and is secured longitudinally

  by corresponding shoulders and the breech ring, which is

   
  

• March 27, 2017 15:49:57 Cheryl Ellsworth

  18 Pounder Q.F. Gun
  

  
  

  Notes

  Material                                                             Steel (wire construction)

  Weight (with breech fittings)                          9 cwt

  Length (total)                                                    96.96 inches

  Calibre (diameter of bore)                              3.3 inches

  Bore { Length (to face of breech screw)       92.62 inches

  
  

  Rifling: 

  { System       Polygroove modefied plain section

  { Length        80-232 inches

  { Twist           Uniform 1 turn in 30 calibres

  Grooves { Number     18

                  { Depth         .04 inch

                  { Width         .384 inch

  Firing Mechanism          Percussion

  
  

  The gun is made of steel and consists of the "A" tube a

  series of layers of steel wire, jacket, and breech ring. The

  "A" tube extends from the rear end of the chamber to the

  muzzle. Over a portion of the "A" tube are wound successive

  layers of steel wire. The jacket is fitted over the exterior

  of the wire and "A" tube, and is secured longitudinally

  by corresponding shoulders and the breech ring, which is

  
  

  
  

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