The 2S7 Pion M-1975 (Soviet name SO-203) is a tracked 203mm self-propelled gun designed and manufactured by the Russian defense industry. The 2S7 chassis was developed by the Kirov Factory under the designation of the Obiekt 216, with the gun and mount being developed by the Barrikady plant. The 2S7 takes 5 to 6 minutes to come into action and 3 to 5 minutes to come out of action. The 2S7M is a modernized version of the previous 2S7 using the same 203mm cannon but with many new improvements. 2S7 main variants: - 2S7M Malka: latest variant is equipped with R-173 communications equipment and can carry a total of eight 203 mm projectiles and charges. In addition, the rate of fire is increased from 1.5 to 2.5 rds/min. And can work with an 1V12M command vehicle, which uses a GLONASS (Russian GPS) Computer for targeting. Weapon range is 37.5 kilometers without rocket assisted projectiles. 47.5 kilometers effective firing range with assisted projectiles.

i did not touch the audio, came like this from the source.