The success of the SU-152 forced Soviet tank designers to develop another vehicles based on new JS tank, which production begun in Cheluabinsk. Works on "Object 241" performed at the same time as the works on JS-1 (JS-85) heavy tank. New assault gun looked like its predecessor - SU-152, though the new one had a higher compartment. Internal capacity of both vehicles was equal, so they had an equal amount of ammunition - 20 shots. Both vehicles had the same armament - 152 mm ML-20S gun-howitzer. In summer 1943 the new "object 241" was showed to the GKO and after that it was accepted to the Red Army service under "JSU-152" designation.
The main problem during mass production of the new assault gun was lack of ML-20S cannons. Soviet artillery plants weren't able to produce them in proper quantity. Although there were plenty of 122 mm A-19 cannons and huge number of 122 mm ammunition. As a result, in summer 1943 the SKB-2 (design bureau in Chelyabinsk) has been ordered to try to mount an A-19 cannon instead ML-20S.
Increase many details, please examine the picture specifically
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Aircraft
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AFV
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Ship
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Automotive
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Motorcycle
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32 or 35
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18
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8
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1:48
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13
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5
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1:72
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8
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1:144
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6
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3
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1:350
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20
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1:700
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15
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1:16
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20
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20
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1:24
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30
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15
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15
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