ISU-130 Heavy Self Propelled Gun

The ISU-130 was based on the ISU-122S in 1944 with a prototype developed in October '44. The ISU-130 was fitted with a 130mm S-26 gun based on the naval B-13 gun with a "T" shaped muzzle brake. Performance and firing trials were conducted in June 1945 but the gun's performance was not as good as the 122mm it had replaced.The prototype ended up in the Kubinka museum.

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