Image:QF1pounderCartridgeDiagram.jpg

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Description

Diagram of Mk II explosive and Mk I tracer rounds for British QF 1 pounder "pom-pom" gun.
Total round length approximately 168mm, cartridge case lengh 94mm, shell + fuze length 94mm.
Shell is made of cast iron. Weight is 1 lb. Calibre = 37 mm.
Propellant charge 1 oz 3 1/4 drams Cordite Mk I, size 3 3/4.
Mk III explosive and Mk II tracer rounds were similar, except that propellant was specified as 520 grains Cordite Mk I size 2 1/4 for Mk III explosive round, and 520 grains Cordite M.D. size 4 1/4 for Mk II tracer. 520 grains = 1 oz 3 drams.
The shell had both a normal driving band near the base, and an additional narrow centering band closer to the nose.
Bursting charge 270 grains F.G. powder.
Igniter 5 grains R.F.G.2 Mk I.
Source

Plate LXXX and Page 420 in "Treatise on Ammunition" 10th Edition, 1915.
Facsimile reprint by Imperial War Museum and Naval & Military Press, 2003
Date

details correct as at 1 August 1914
Author

War Office, UK
Permission
(Reusing this image)

Crown Copyright expired (50 years)

Public domain This artistic work created by the United Kingdom Government is in the public domain

This is because it is one of the following:

  1. It is a photograph created by the United Kingdom Government and taken prior to 1 June 1957; or
  2. It is a photograph or an engraving created by the United Kingdom Government and commercially published prior to 1958; or
  3. It is an artistic work other than a photograph or engraving (e.g. a painting) which was created by the United Kingdom Government prior to 1958.

More information. See also Copyright, Crown copyright artistic works and HMSO Email Reply.

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current07:03, 20 April 2008553×1,000 (153 KB)Rcbutcher ({{Information |Description=Diagram of explosive and tracer rounds for British QF 1 pounder "pom-pom" gun. |Source=Plate LXXX in "Treatise on Ammunition" 10th Edition, 1915. <br>Facsimile reprint by Imperial War Museum and Naval & Military Press, 2003 |Dat)
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