The Excalibur® artillery projectile is a revolutionary, extended-range, precision munition for U.S. and international artillery forces.

Co-developed by Raytheon and BAE Systems Bofors, Excalibur increases precision, minimizes collateral damage and reduces the logistical burden for artillery forces.

True precision weapon

Excalibur is a true precision weapon, impacting at a radial miss distance of less than two meters from the target.

Overmatch capabilities

Excalibur’s precision, coupled with its ability to be integrated on multiple gun systems, provides overmatch capabilities against land targets in a variety of combat environments.

Excalibur is compatible with a variety of howitzers and other mobile artillery systems. The Excalibur projectile extends the reach of 39-caliber artillery to 40 kilometers, 52-caliber artillery to 50 kilometers, and 58-caliber artillery to 70 kilometers.

Multiple variants

No mission is the same. Excalibur's modular design and versatile capabilities provide customizable variants to meet diverse target sets and battlefield scenarios.

Excalibur 1B

The upgraded Excalibur 1B features Enhanced Shaped Trajectory, or EST, software that enables soldiers to eliminate targets in hard-to-reach locations by selecting the projectile's terminal or final phase attack angle. This capability was successfully tested and is being deployed to U.S. forces.

Excalibur HTK

Excalibur HTK has an armor-penetrating warhead and leverages the proven StormBreaker smart weapon design. It autonomously locates a target with an all-weather seeker that is effective against moving and imprecisely located targets.

Recent news: Excalibur HTK completed a seeker design verification test, a major milestone for the program. (December 2025)

 

Excalibur S

A laser-guided version of the projectile, the Excalibur S incorporates a digital semi-active laser seeker that allows it to hit moving targets and engage and strike targets without accurate location information. It also reduces the risk associated with GPS jamming.

Excalibur N5

The sea-based Excalibur N5 is a 5-inch naval variant that more than doubles the maximum range of conventional 5-inch munitions and provides the same accuracy as land-based versions. Future upgrades are underway to support counter-UAS missions.

Extend Range Artillery Projectile (ERAP)

A variant of the Excalibur, ERAP can fly extended ranges and strike moving targets on land and sea.

Recent news: Raytheon completed analysis, design, manufacture and test of the Extended Range Artillery Projectile warhead in just six months - a key milestone toward delivering this revolutionary projectile to the U.S. Army. (December 2025)

 
The U.S. Marine Corps prepare an Excalibur® 155 mm projectile round on Fire Base Bell, Iraq, while conducting fire missions. (Photo: U.S. Marine Corps)
The U.S. Marine Corps prepare an Excalibur® 155 mm projectile round on Fire Base Bell, Iraq, while conducting fire missions. (Photo: U.S. Marine Corps)
The Excalibur munition’s naval 5-inch variant will offer long-range precision fire to counter fast attack craft and provide naval surface fire support. (Photo: U.S. Navy)
The Excalibur munition’s naval 5-inch variant will offer long-range precision fire to counter fast attack craft and provide naval surface fire support. (Photo: U.S. Navy)
U.S. Marines fire an M982 Excalibur projectile round from an M777 155 mm howitzer during a fire support mission at Fire Base Fiddlers Green, Helmand province. (Photo: U.S. Department of War)
U.S. Marines fire an M982 Excalibur projectile round from an M777 155 mm howitzer during a fire support mission at Fire Base Fiddlers Green, Helmand province. (Photo: U.S. Department of War)
The Excalibur projectile’s N5 naval variant will soon be fired from ships like the Arleigh Burke-class guided-missile destroyer USS Dewey. (Photo: U.S. Navy)
The Excalibur projectile’s N5 naval variant will soon be fired from ships like the Arleigh Burke-class guided-missile destroyer USS Dewey. (Photo: U.S. Navy)
The latest variant of the Excalibur precision-guided projectile will be used by armies and will be available for naval ships.
The latest variant of the Excalibur precision-guided projectile will be used by armies and will be available for naval ships.