Britain has restarted domestic production of large-calibre tank and artillery gun barrels for the first time in approximately 20 years, following the official opening of Rheinmetall’s UK Gun Hall in Telford, Shropshire, on Thursday 22 October 2026. The factory produces critical components for military weapon systems, including those supporting the British Army’s Challenger 3 programme, and is expected to support more than 100 skilled jobs as production expands.
Britain Restores a Lost Defence Manufacturing Capability
The new facility represents a significant development for Britain’s defence industry, restoring the domestic manufacture of specialist weapon components that had been absent for approximately two decades.
Operated by German defence manufacturer Rheinmetall, the UK Gun Hall produces barrels and breeches for 120mm tank guns and 155mm artillery systems.
These components are central to modern armoured warfare, with the facility supporting programmes including the Challenger 3 main battle tank and future artillery platforms.
Defence Secretary Wes Streeting officially opened the factory alongside Chief of the General Staff General Sir Roly Walker and Rheinmetall chief executive Armin Papperger.
The opening marks the completion of an industrial transformation that saw an empty facility converted into an operational manufacturing site in approximately eight months.
However, production did not begin at the October ceremony. Rheinmetall confirmed that manufacturing of breeches and breech blocks began in May 2026, followed by gun barrel production in June.
Factory Could Produce 245 Gun Barrels Every Year
The Telford facility provides approximately 11,500 square metres of manufacturing space.
According to Rheinmetall, its maximum planned annual capacity is:
- Up to 245 large-calibre gun barrels across the 120mm and 155mm systems.
- More than 50 breeches, which form part of the mechanism used to load and secure ammunition in the weapon.
These are peak production capabilities rather than confirmed current output figures.
The factory is intended to support British defence requirements while also responding to demand from NATO allies and international customers.
Having domestic production capability means Britain can manufacture strategically important components on its own territory, although the wider manufacturing process will continue to involve international suppliers and industrial partners.
Skilled Jobs for Telford, With Further Expansion Planned
The government has highlighted the creation of 100 skilled manufacturing jobs as a major benefit of the investment.
However, Rheinmetall’s own announcement provides a more detailed picture.
The company currently employs approximately 685 people across its Telford operations, including 35 at the new Gun Hall.
It expects the Gun Hall workforce to grow to more than 100 as production develops.
The distinction matters because the full projected workforce is not yet in place.
Employees recruited for the specialist manufacturing operation have undertaken training at Rheinmetall’s facility in Unterlüß, Germany.
Their training included precision manufacturing, quality assurance and the production of specialist military weapon systems.
The transfer of those skills back to Britain is intended to establish a workforce capable of supporting domestic production over the longer term.
Rheinmetall also plans to work with smaller British engineering and manufacturing businesses as its supply chain develops.
British Steel Could Become Part of Production
Another important aspect of the project is the planned involvement of Sheffield Forgemasters.
Rheinmetall has confirmed that it intends to introduce British steel supplied by the Sheffield-based manufacturer into production at the Telford facility.
This could create additional opportunities within Britain’s domestic steel industry and reduce dependence on imported materials for some manufacturing requirements.
However, the company’s announcement describes this as a future development, rather than confirming that Sheffield Forgemasters steel is already being used in routine production.
The distinction is important when assessing how much of the manufacturing supply chain has already returned to Britain.
Defence Secretary Says Britain Must Rebuild Manufacturing Capacity
Speaking at the factory opening, Defence Secretary Wes Streeting described the development as evidence of Britain’s effort to rebuild its industrial capabilities.
He said:
“From an empty site to full production in eight months, this is rapid reindustrialisation in action.”
Streeting argued that modern defence requires more than advanced technology. Countries must also possess sufficient manufacturing capacity to replace equipment, replenish stockpiles and sustain military operations.
The continuing war in Ukraine has demonstrated the importance of artillery systems and the industrial capacity needed to maintain them.
General Sir Roly Walker also addressed this issue, warning that military manufacturing capacity cannot simply be created once a crisis has already begun.
The new factory is therefore being presented not only as an economic investment but also as part of Britain’s preparations for future defence requirements.
Part of a Wider UK-Germany Defence Partnership
The Telford Gun Hall forms part of Rheinmetall’s wider investment of more than £200 million across its UK operations over the past five years.
That figure covers the company’s broader British operations, not solely the new factory.
Rheinmetall is already involved in major defence programmes including the Boxer mechanised infantry vehicle and Challenger 3 tank modernisation.
The Gun Hall also demonstrates the industrial cooperation established through the Trinity House Agreement, signed by Britain and Germany in October 2024.
The agreement seeks to strengthen defence cooperation between the two countries and support their contributions to NATO security.
While the factory restores a manufacturing capability on British soil, the use of Rheinmetall’s German technology, training and expertise illustrates how domestic industrial capacity and international defence cooperation can operate together.
Why the Return of Tank Barrel Production Matters
The significance of the new Telford factory goes beyond the immediate number of jobs created.
For approximately 20 years, Britain lacked this particular domestic large-calibre gun barrel manufacturing capability.
Re-establishing it provides an opportunity to rebuild specialist engineering skills, expand domestic supply chains and reduce reliance on overseas manufacturing for critical military components.
But the long-term benefits will depend on how successfully production expands.
Rheinmetall’s target of more than 100 skilled workers, its maximum annual production capacity and its intention to introduce British steel are all important indicators of future development.
They are not all achievements that have already been completed.
The immediate milestone is that manufacturing has resumed, the first components have been produced, and Britain once again has an operational facility capable of making large-calibre gun barrels.
For Telford and the wider British defence industry, the next test will be whether that restored capability develops into a sustainable, long-term manufacturing operation.
Sources
- Ministry of Defence: British jobs boost as tank barrel production returns to the UK, 22 October 2026.
- Rheinmetall: New chapter for British firepower, UK Gun Hall opens, 22 October 2026.
- Defence Secretary’s speech at the opening of Telford Gun Hall, 22 October 2026.
