Overview of the Russian modernized self-propelled guns Msta-SM2 2S33. In Russia, they are increasing the production of the modernized self-propelled guns "Msta-SM2". The upgraded 2S33 self-propelled guns have significant design differences, a new automated fire control system is installed on it, and the aimed rate of fire has been increased to more than 10 rounds per minute. The use of digital electronic maps significantly accelerated orientation on the ground and increased the speed of deploying the gun in position by 2 times. Thanks to the modernization of the self-propelled guns, the Msta-SM2 can easily be aimed at targets that receive data from the UAV. The new automatic fire control system increased the guidance speed by 1.5 times. The self-propelled guns now have the "simultaneous fire attack" function, when several self-propelled guns fire at once from different positions. SAU 2S33 is equipped with a 2A65 152-mm gun. The howitzer is equipped with a programmable loading system and can fire high-explosive fragmentation, active-rocket jammers, as well as Krasnopol high-precision guided munitions at a distance of up to 29 km. Ammunition ACS 50 shells. ACS "Msta-SM2" develops speed up to 60 km/h and has a cruising range of more than 600 km.