The first known tests of this system took place in August 2019 but, at that time, the canisters were partially covered, concealing the system. This time, photos of the last fire tests that took place on 29 March show the full size and similarity of the tracked version of the presumably 600mm RSZO, at least the transport and launch canisters. What is confusing is that the launch range of wheeled MLRSs was 350-400+ km, and here the launch was 230 km.
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| On Sunday 29 March, the South Korean Committee of Chiefs of Staff (CSC) reported that DPRK launched two short-range ballistic missiles from the country's east coast towards the sea, flying 230km (picture source: KCNA/ЦТАК). |
