Found in 1 comment on Hacker News
cpursley · 2022-06-13 · Original thread
They haven't appeared to use a lot of hypersonics (no need, really); probably just testing and calibration. With just the kinetic energy alone, they can do massive damage. And make no mistake, the US will have them soon enough. There's a reason Russia made their moves now (during that gap).

As for preciseness, the newer ballistics have precision of over 90% (thanks, US designed chips). Older ones probably 75%. Their biggest weakness is access to chips.

And the imprecise hits are coming from the Tochka-Us, an old system that mostly the Ukrainians are fielding - but maybe pro-Russian Ukrainian separatists forces some, too.

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