Inert .303 British Ammunition by Birmingham Metal & Munitions Co. (J Headstamp)

This inert .303 British rifle cartridge, marked with the “J” headstamp, was manufactured by Birmingham Metal & Munitions Co. Ltd, one of Britain’s key ammunition producers during the First World War. Dating from the intense wartime production period, these cartridges were originally issued for use with the Lee-Enfield service rifle, the backbone of British and Commonwealth forces.

The round has been professionally rendered fully inert, ensuring safe handling and display while retaining its original wartime character. The brass case, classic .303 profile, and clear “J” headstamp make it an appealing and historically important example for collectors of WWI ordnance.

Birmingham Metal & Munitions Co. was instrumental in meeting Britain’s enormous ammunition demand, and their products are now sought after for their heritage and manufacturing quality. Ideal for display boards, educational collections, or as an authentic addition to any WWI militaria set, this inert cartridge represents a tangible link to Britain’s wartime industry.