The Silent Weapon Reshaping Modern Warfare
Why the World Suddenly Needs Millions of 155mm Artillery Shells.
Everyone is talking about drones, AI and hypersonic missiles. But one of the biggest defence opportunities today isn't a futuristic weapon, it's a 155mm artillery shell, a century-old product now central to modern warfare.
The Russia-Ukraine war exposed how thin Western ammunition stockpiles had become, triggering a multi-year global race to rebuild capacity. Amid that rebuild, India is quietly emerging as a competitive, low-cost manufacturing hub in a global market which is forecasted to grow from US$3.6 billion (2026) to over US$9 billion (2034), a 12.20% CAGR (Source: Fortune Business Insights).
Defence manufacturers are now expanding capacity at rapid pace, and nations are discovering that winning a war is not only about possessing advanced weapons, it is also about having enough ammunition to sustain them.
Not every defence boom begins with a new weapon. Sometimes, it begins with running out of ammunition.
Understanding the 155mm M107 Artillery Shell
An artillery shell can be thought of as the heavy-duty cousin of a rifle bullet.
An artillery shell is basically a large, powerful bullet fired from big guns (called artillery)
A normal bullet → used in rifles
An artillery shell → used in huge cannons / howitzers
An artillery shell typically has:
Metal body (Military grade steel casing)
Explosive material inside
Fuse (to trigger explosion)
While a soldier’s bullet may weigh a few grams and travel a few hundred meters, a 155mm artillery shell weighs roughly 40–50 kilograms and can be fired over distances exceeding 30+ kilometers.
The “155mm” refers to the diameter of the shell and has become the standard caliber adopted by NATO countries and several modern armies worldwide.
The M107 is one of the most widely used High Explosive (HE) artillery shells. Once fired from a howitzer, the shell travels toward its target before detonating, delivering destructive force over a large area.
These shells are compatible with many artillery systems currently deployed around the world, including:
ATAGS
Dhanush
K9 Vajra
M777 Ultra-Light Howitzer
Unlike missiles, which are expensive precision weapons used selectively, artillery shells are designed for sustained battlefield use. In active conflict zones, thousands can be fired in a single day.
That distinction is crucial because it fundamentally changes the economics of defence manufacturing.
Artillery Shell - The Defence Product That Gets Consumed Every Day
Many defence platforms are purchased once and used for decades.
A fighter aircraft may remain operational for 30 years. A tank may serve for decades.
An artillery gun may remain in service for generations.
Artillery shells are different. Every shell fired must eventually be replaced. The 155mm caliber has emerged as the preferred artillery standard across NATO nations and many allied countries because it enables interoperability.
This makes ammunition one of the few truly recurring businesses within the defence sector.
Military planners often compare ammunition to fuel. No matter how advanced a country’s weapons systems are, operations eventually slow down if ammunition inventories run low.
The Russia-Ukraine conflict demonstrated this reality dramatically.
How the Russia-Ukraine War Changed the Ammunition Market
Before 2022, many Western nations viewed large-scale artillery warfare as a relic of the past. For decades, many militaries maintained relatively modest stockpiles of artillery shells, assuming that future conflicts would be short and dominated by precision weapons
The Russia-Ukraine war changed that perception almost overnight. Artillery once again emerged as one of the most decisive battlefield weapons.
The war revealed a critical weakness in global defence preparedness: ammunition stockpiles were far smaller than required for prolonged conflict. Millions of 155mm artillery rounds were consumed within a few years, exposing serious shortages across NATO and other allied nations.
Reports suggest that both sides have fired millions of artillery rounds during the course of the war. In some periods, daily consumption exceeded the annual production capacity of several European countries combined.
The result was a global wake-up call. Governments suddenly realized that years of underinvestment had left production capacity inadequate. This triggered a worldwide race to increase shell production.
Today, NATO countries are collectively targeting production levels running into millions of artillery rounds annually.
Countries including the United States, Germany, the United Kingdom, France, Poland and several Eastern European nations have announced investments to expand ammunition manufacturing facilities.
What was once a niche industrial activity has become a strategic national priority.
Industry and Global Players -
The global demand for 155mm artillery ammunition is entering a phase of rapid acceleration. The market is forecasted to more than double, surging from US $3.6 billion in 2026 to US $9 billion by 2034 at a CAGR of 12%.
Source:.fortunebusinessinsights.com
Globally, major ammunition manufacturers include:
Rheinmetall (Germany)
BAE Systems (UK)
General Dynamics (USA)
Elbit Systems (Israel)
Denel (South Africa)
In India, public sector entities such as Munitions India Limited continue to play a major role, while an increasing number of private sector companies are entering various stages of the artillery ammunition supply chain.
How Major Nations Are Rebuilding Their Artillery Ammunition Stockpiles.
The United States has launched one of the world’s largest ammunition expansion programmes, increasing 155mm shell production from around 14,000 rounds per month in 2022 to a target of 100,000 rounds per month, backed by investments across multiple Army ammunition plants. This expansion is designed not only to replenish U.S. inventories but also to support allies and ensure long-term readiness.
US-Taiwan Set To Co-Produce 155 MM Artillery Shells | WION News
Across Europe, Germany has emerged as the driving force behind NATO’s ammunition revival. Defence giant Rheinmetall has invested nearly €500 million to build Europe’s largest 155mm artillery shell factory in Unterlüß. The facility alone will manufacture up to 350,000 shells annually, while Rheinmetall’s broader network is expected to reach 1.5 million shells per year by 2027, making it one of the world’s largest ammunition producers.
Poland, positioned on NATO’s eastern flank, is rapidly strengthening its sovereign ammunition capabilities. The Polish government has committed over US$660 million to expand domestic production of 155mm shells, targeting annual output of 150,000-180,000 rounds. Similar investments are underway across the Czech Republic, France, the United Kingdom and other European nations as they rebuild strategic reserves and reduce dependence on overseas suppliers.
In the Asia-Pacific, South Korea continues to leverage its globally successful K9 howitzer programme by expanding ammunition manufacturing and localising production closer to European customers. At the same time, Australia has announced new investments to establish sovereign production of NATO-standard 155mm M795 artillery shells, becoming the first country outside North America to manufacture this ammunition for both domestic use and allied supply chains.
India’s Emerging Role in the Global Ammunition Ecosystem -
The Union Budget for FY2026 allocated approximately ₹6.8 lakh crore to defence, making it one of the world’s largest military budgets..
The results are already becoming visible. India’s defence exports, which were negligible a decade ago, have risen sharply to record levels. Indian-made defence equipment including artillery systems, missiles, radars, armoured vehicles, patrol vessels and ammunition is now being exported to more than 100 countries.
The artillery ecosystem is a prime example.
The induction of platforms such as ATAGS, Dhanush and K9 Vajra has significantly increased the need for domestically produced 155mm ammunition.
At the same time, geopolitical developments have created export opportunities for Indian manufacturers capable of meeting global quality standards.
Indian Companies Riding the 155mm Artillery Opportunity -
India has become a key supplier of 155mm artillery shells, with PSU’s companies like Munitions India Limited (MIL) and Yantra India Limited (YIL) ramping up production to meet domestic and international demand.
What makes this story particularly interesting is that private-sector participation is expanding rapidly. As India’s defence manufacturing ecosystem expands, several engineering and forging companies are moving into the production of 155mm artillery shells. While most are at different stages of execution, together they represent the emergence of a new private-sector ammunition manufacturing base.
The following Indian companies are actively participating in the manufacturing of Artillery shells -
Recent Order Wins for Artillery shells -
What Makes This Opportunity Different?
Defence spending is often cyclical. Ammunition demand is increasingly becoming structural.
Three powerful forces are driving the market:
1. Replenishment of Existing Stockpiles
Countries are rebuilding inventories depleted over recent years.
2. Rising Geopolitical Tensions
Europe, the Middle East and parts of Asia are all increasing defence preparedness.
3. Defence Self-Reliance
Governments increasingly prefer local production rather than dependence on imports during periods of conflict.
Together, these trends suggest that artillery ammunition demand could remain elevated for many years.
Risk -
Despite the strong growth outlook, the artillery ammunition theme is not without risks.
Geopolitical Risk: A reduction in global conflicts or faster replenishment of inventories could soften incremental demand.
Execution Risk: Several Indian manufacturers are scaling up production for the first time. Delays in commissioning plants or meeting stringent defence specifications could impact order execution.
Policy Risk: Defence exports remain subject to government approvals and changing geopolitical relationships.
Customer Concentration: Defence orders are typically awarded by governments or a limited number of customers, making revenues inherently volatile.
Competition: As more global and domestic manufacturers expand capacity, pricing pressure could emerge over time.
Ultimately, the winners will likely be companies that consistently execute, secure repeat orders and build long-term relationships with global defence customers.
Conclusion -
Modern warfare has delivered an unexpected lesson. The future of defence is not determined solely by cutting-edge technology. Sometimes it is determined by whether a nation has enough ammunition when it needs it most. The 155mm artillery shell may appear to be a simple steel product, but it sits at the intersection of geopolitics, national security, industrial capability and global supply chains.
The strongest evidence of the artillery ammunition boom is not found in military speeches but in order books. Over the last year, Indian companies such as Goodluck Defence & Aerospace, Sunita Tools, Hilton Metal Forging, Balu Forge and Sigma Advanced Systems have collectively announced contracts running into hundreds of thousands of artillery shells.
With competitive manufacturing costs, expanding private-sector participation and a growing focus on exports, India is steadily positioning itself as a meaningful player in the global ammunition supply chain moving from a historical importer toward a manufacturing hub in this emerging global munitions supercycle.