Tiberius Aerospace has announced it has secured a UK Ministry of Defence contract to support the rapid trials and development of its Sceptre ramjet artillery round, a new extended-range precision-guided 155mm munition.

According to the company, the contract makes the UK the launch customer for its technology, with verification and validation work supported by the US Defence Innovation Unit. Specific contract details have not been disclosed.

Sceptre, formally designated TRBM 155HG, is described by Tiberius as a “revolutionary” munition able to reach speeds of Mach 3.5, altitudes of more than 65,000 feet, and ranges of up to 150km depending on payload. The round is designed to be compatible with NATO-standard 155mm artillery systems and incorporates a liquid-fuelled ramjet using multiple fuel types. The company claims a circular error probability of less than 5m, even in GPS-contested environments, a major improvement over traditional artillery.

Andy Baynes, co-founder and Chief Strategy Officer of Tiberius Aerospace, said: “Since the launch of Sceptre in May 2025, Tiberius has evolved the capability at pace through a series of high tempo live-firing and synthetic test cycles. We’re delighted to announce this UK MoD contract which has invested early in our technology development cycle. This is testament to the UK’s visionary leadership and their understanding of the importance of driving innovative solutions such as Sceptre and Defence-as-a-Service to increase national security.”

The company says that its approach draws on Silicon Valley practices, with a focus on rapid iteration, agile development, and what it terms “Defence-as-a-Service,” decoupling innovation from manufacturing to support sovereign collaboration and adaptation across allied nations.

Tiberius plans to showcase Sceptre and its broader development model at DSEi in London from 9 to 12 September, where it will also launch its GRAIL platform alongside UK and US defence innovation officials.

Founded in 2022 by Chad Steelberg and Andy Baynes, Tiberius Aerospace says it aims to apply commercial technology expertise to next-generation precision weapons, missile systems, autonomous platforms, and AI-enabled defence capabilities for the UK, US and allied nations.

George Allison
George Allison is the founder and editor of the UK Defence Journal. He holds a degree in Cyber Security from Glasgow Caledonian University and specialises in naval and cyber security topics. George has appeared on national radio and television to provide commentary on defence and security issues. Twitter: @geoallison

13 COMMENTS

  1. ‘Britain contracts tiberius munition’
    I know, this sort of trial spending really is a disease.
    How’s that, Halfwit?

    • Very good, I like the cut of your Jib !

      Have you seen tghe T83 article on Janes ? It’s interesting, just a rendition but it does look the Dogs.

    • “(tested through) a series of high tempo live-firing and synthetic test cycles.” Really? Have they got a ready-to-go missile and, if so, where did they test fire it?

  2. Now this is the sort of innovation that we need, if it lives up to what it says on the tin. Now let’s hope the talk leads to substance.

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