There is also a school of thought UKR actually has the 300km version, which is implied by the below quote.
"Well, the HIMARS—there's two kinds of, in the average person's parlance, rockets you can drop in those: one that goes over 600 miles and one that goes about 160 miles," he said.
"We didn't give them any ones that go to 600 miles, because I'm not looking for them to start bombing Russian territory."
Sadly thats more "Biden Gaffes" as there are no 600 mile version, the maximum range is just 300km for a few versions & it's been Fact Checked as False - https://www.newsweek.com/fact-check...ars-given-ukraine-have-160-mile-range-1758739
Irrespective of any political beliefs, having a leader with clear memory issues like this who continually "misspeaks" with facts like this is a real risk to escalation due to his gaffes.