Ukrainian barrel artillery is rapidly shifting from Soviet-era calibres to NATO. By 2023, half of the shells fired were 155 mm, and in 2024, the number of Soviet 152 mm calibres might drop to 10%.

The remaining calibres are Soviet 122 mm, NATO 105 mm, and Soviet 152 mm. According to the Ukrainian officer, the latter's use, compared to NATO's 155 mm, might reach a 1:10 ratio by the end of ...