Object Title

Centrefire cartridge case - .303 in

Centrefire cartridge case - .303 in



Object Number



Ex Greenwood and Batley Ltd., Leeds via the collection of Geoffrey Brown. Purchased 17 October 1999

Physical Description

This comprises two parts;
A. an aluminium tapered tube partially headed with a flange and thickened base pierced by a large diameter hole.
B. a flanged cupro-nickel insert which carries the cap chamber and integral anvil.
The aluminium tube has not been necked at this stage to allow the insertion of a die into the case to expand the cupro-nickel reinforcing piece over the inside of the head. (this is clearly shown in XX.4088, and the completed case in XX.4086)


Cupro-nickel insertLength10.48 mm
Aluminium tubeLength56.95 mm


.303 in


Places Britain


These cases were experimentally produced around 1934/1935 by Greenwood and Batley in Leeds in response to requests from the RAF for lighter ammunition for airborne use. None were entirely successful and were never adopted.