AUSA 2026: Nammo advances 155mm ramjet artillery technology for extended-range fire

Nammo said its 155 mm ramjet-powered artillery projectile had reached Technology Readiness Level 6 during AUSA 2026, advancing development of extended-range ammunition for standard NATO guns. The projectile has undergone ballistic testing from a 155 mm/39-caliber weapon, while the company is pursuing compatibility with other standard artillery systems, including 52-caliber barrels. Ramjet propulsion is being developed alongside conventional, base-bleed and rocket-assisted ammunition within Nammo's broader range-extension portfolio. The reported milestone concerns technology demonstration and continued development, rather than operational fielding, a production award or a confirmed procurement of ramjet artillery rounds.