Very large-caliber artillery, specified as the 2S7 Pion or M110 self-propelled guns or the 2S4 Tulip mortars, is presently a dying species. This is due, m.in, to the increasingly better performance of the cal. 152/155 mm, shortages of spare parts and increasingly rapidly melting stocks of ammunition of this caliber on a global scale. most likely 1 of the nails in the coffin for her will be the war in Ukraine, especially for the Pawns, Malki and Tulips. However, in 1 country it was decided that it was worth refreshing this section of artillery and developing something new.