ISC Defence Intelligence title card. Eurosatory 2026 open-source technical assessment, 20 June 2026.

Rheinmetall unveils the L60: a 60-calibre 155 mm gun reaching for a 30 percent range gain at Eurosatory 2026

Technical Summary

Rheinmetall used Eurosatory 2026, the land-defence exhibition in Paris running from 15 to 19 June, to unveil the L60, a new 155 mm tube-artillery weapon system. In a release dated 15 June the company stated the L60 is designed to extend the range of wheeled and self-propelled howitzers, projecting a reach roughly 30 percent greater than the conventional 155 mm/L52 gun. The designation follows standard ordnance convention: L60 denotes a barrel 60 calibres long, that is 60 multiplied by 155 mm, giving a tube of about 9,300 mm. The complete gun system weighs a little over 2.5 tonnes.

The performance gain comes from two linked changes to the interior ballistics: a longer barrel, which gives the propellant gases more time and distance to accelerate the projectile, and an enlarged chamber, which accommodates a larger propelling charge. Rheinmetall reports that development has run for several years and that recent milestones have been reached. In January 2025 the system was tested at firing pressures exceeding 600 megapascals (MPa), and through 2025 further trials achieved muzzle velocities above 1,100 metres per second. A first firing demonstration of the complete L60 is planned for 2026, initial barrels have been procured, and production has begun. The gun was shown for the first time at the Rheinmetall stand, booths F115 and F116.

Rheinmetall states the L60's 60-calibre barrel and enlarged chamber, proved above 600 megapascals and 1,100 metres per second in 2025 trials, are projected to reach roughly 30 percent further than the L52 gun that arms the PzH 2000 self-propelled howitzer. ISC technical assessment, Eurosatory 2026

Analysis of Effects

For context, an L52 gun such as the one on the Panzerhaubitze 2000 (PzH 2000) reaches about 30 km with a standard NATO projectile and about 40 km with an extended-range round. Applying the projected 30 percent uplift to those figures gives an illustrative reach of roughly 39 km and 52 km respectively, though this is arithmetic against a manufacturer projection rather than a demonstrated firing result, and the first full firing demonstration is still ahead. The quoted muzzle velocity above 1,100 m/s sits comfortably beyond the figure of around 945 m/s typical of an L52 firing a standard charge, and is the direct mechanism behind the range claim.

The figure that most warrants WOME attention is the chamber pressure. A proved firing pressure above 600 MPa is high relative to current in-service 155 mm guns, and it points to an advanced, energetic propellant charge fired through a reinforced breech and a barrel built to withstand the load. Pressures of that order increase bore erosion and shorten barrel fatigue life, so the through-life cost of the system will turn on barrel metallurgy and wear management as much as on the headline range. The enlarged chamber also raises the central interoperability question: NATO 155 mm interchangeability rests on the Joint Ballistics Memorandum of Understanding (JBMOU), which fixes a common chamber and zoning so that allied projectiles and charges fire safely across compliant guns. Whether the L60 retains a JBMOU-compatible chamber, or requires its own dedicated charges to reach the advertised performance, is not stated in open sources and is the decisive standardisation point.

Personnel and Safety Considerations

A chamber proved above 600 MPa raises the proof, breech-safety and crew-protection margins that a gun must demonstrate before fielding, and it sharpens the propellant temperature and pressure relationship that governs overpressure and cook-off risk. Higher pressures and velocities accelerate barrel wear, so barrel-life tracking and condemnation criteria become safety-critical rather than merely logistical. Any United Kingdom or allied through-life support arrangement would manage the gun, its charges and its projectiles under recognised ordnance, munitions and explosives regulation, with energetic-material qualification under Allied Ordnance Publication 7 (AOP-7) and storage classified by Hazard Division and Compatibility Group against the as-packaged natures involved.

Data Gaps

Open sources do not disclose the chamber volume or whether it remains JBMOU-compliant; the propellant charge family used to reach the quoted figures; the projectile types tested; the demonstrated, as opposed to projected, maximum range; the barrel fatigue life at the stated pressure; the intended carrying platform, whether a PzH 2000 retrofit or a new mount; an in-service date; or any launch customer. The range figures in this article are manufacturer projections pending the planned 2026 firing demonstration.

Corrections & updates welcome. If you hold open-source data that refines or corrects any parameter in this article, please contact [email protected] citing the specific claim and your source. Verified corrections will be incorporated and credited in the revision history. AI-assisted technical assessment based on open-source material. Not a formal intelligence product.