Russian Artillery 2S4 Tulip and 2S7 Pion self-propelled artillery live fire
Russian Army conducts self-propelled artillery live fire drills in Southern Military District (North Ossetia)
The 2S7 Pion ("peony") is a Soviet self-propelled 203mm heavy artillery. Largest arsenal of these howitzers belongs to Ukraine, Belarus and Russia's armed forces.
The 2S4 Tyulpan ("tulip") is a Soviet 240 mm self-propelled heavy mortar. Largest arsenal of these self-propelled mortars belongs to Russian armed forces. There is also a towed carriage version of these mortars - the 2B8 mortar.
Video credit - Russian Ministry of Defense