I think you can find charts / pictures showing bullet expansion vs speed and your comparison may exist.
My opinion - I think these bullets have optimal expansion speeds and RN is lower so think about your typical shot range and the speed its going. An example is magnums are designed to work at longer ranges where slow rifles work better at chip shot range.
And to give you an all out opinion... I thought my 308 with 180 grain round nose worked the best at close range compared to spire points. You can't find them as easily now so I use 150 grain spire.
People may argue that 3030's would work as good, but its now a speed & energy comparison.
