HN - ROF Hirwaun Ammunition – Royal Ordnance Factory, South Wales, UK

This collection showcases ammunition produced by the Royal Ordnance Factory (ROF) Hirwaun, located in South Wales, UK. Established during the Second World War, ROF Hirwaun played a crucial role in supplying small-arms ammunition for British and Allied forces, including calibres such as 9mm Parabellum for the Sten gun and .303 British rifle cartridges. Rounds from this factory are typically identified by the HN headstamp, a distinctive marking used throughout wartime production.
The collection highlights variations in dates, load types, and case materials, offering collectors, historians, and researchers valuable insight into wartime ammunition manufacture within the Royal Ordnance Factory network. ROF Hirwaun ammunition remains highly collectible due to its historical significance and its role in supporting Britain’s war effort. Ideal for reference, study, or display, these cartridges represent an important chapter in the UK’s industrial and military heritage.