He did not give cartridge info but I know he shoots a .22-250 quite a bit...along with ( I believe) a .223
If he got those results with the HP out of a .22-250 ( and I think he did...) they should be rock stars in a .223 ( confirmed the .22-250 was the cartridge of choice)
As noted by my gaffe on the other thread, Ive never tried them...
Heres Dober with a recent kill...Texas Blackbuck with his .22-250 ( with custom Ingwe Zebra striped stock...) but I can't recall what bullet he used....