155 mm caliber

They are seen as striking a good compromise between range and power, while using just a single caliber greatly simplifies the logistics burden.

Some militaries continue to retain the smaller 105 mm (4.1 in) weapons for their light weight and greater portability.

Despite superficially appearing to be inferior based on a simple comparison of round diameters, when firing conventional ammunition the smaller, 4.5 inch Mark 8 naval gun is comparable to the standard 155 mm (6.1 in) gun-howitzer of the British Army.

Only one type of ammunition was ever developed and procurement was discontinued in 2016 due to its high cost, making the AGS unusable.

[41] Before the start of the large-scale Russian invasion of Ukraine (2022), the United States produced 14,400 shells per month.

[39] In summer 2023, the EU approved a plan that provides for the production of 650,000 large-calibre ammunition per year, and pledged to supply one million artillery shells to Ukraine over the next 12 months.