Thought I read maximum range was with 500kg payload, happy to be wrong though.
A one or two ton payload at a range of
5,000 km is both plausible and consistent with the size and design of Hyunmoo-V missile. Claims suggesting that this range only applies to significantly lighter payloads such as 500 kg, as sometimes seen in Reddit discussions, are likely an underestimation and at the extreme low end rather than realistic operational loads. The
DF-26 for example, is smaller and weighs considerably less but carries a 1,800 kg payload 4000km.
Crucially, the missile’s destructive power is not solely dependent on warhead mass. At reentry speeds exceeding Mach 10, even a 1-ton conventional payload delivers immense kinetic energy equivalent to a couple tons of TNT before the warhead itself detonates. This gives it significantly more destructive power, and makes it well suited to precision, bunker-penetrating or SEAD strikes.
Road mobile IRBMs are difficult to find and target, making them very effective in a land mass the size of Australia, but they wouldn't go down well with neighbours, and lobbing ballistic missiles into potential adversaries (some nuclear capable) airspace even with conventional (non-nuclear) payloads is inherently risky.