Context to the subject at hand is required . Speed in itself is meaningless. I certainly wouldn't need that kind of speed shooting std jacketed lead bullets or if i was maxing out inside 200 yards .You’ve changed your tune, you spent half another thread telling us that speed wasn’t that important, which is it?!
Impact speed is however important with copper ! Without pushing pressures! Speed for speeds sake or pushing pressures into iffy bolt lifts remains Dumb , just shoot closer game .
At 300 i found significant difference in bullet expansion starting , copper TTSX and perhaps we can guess all copper should hence IMO not be stretched into the unproven ranges
BTW didnt even chrono this load when i noticed the above and it wasnt the top load , its just a fast barrel!


