Yes, and the velocity is wrong. Must have been drunkposting again.
6.5 Grendel: 123 SMK over 28.3 XBR at 2350fps (16” barrel). Stable transonic. I've hit steel fairly consistently at 1150yds with this setup.
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I've shot several 8 pounders worth of 2230 behind 55 FMJs, about 15 years ago so it's hard for me to remember, but it performed just as well as H335 from what I recall. A few years later I acquired a whole bunch of surplus SMP 735 and have been shooting that.
The best accuracy I have ever seen from 55 FMJBT has been with H4895 but that's not worth putting behind a bullet that will only shoot 1-2 MOA.
.243 Winchester deer load
36gr IMR 4064
100gr Hornady Interlock BTSP
~2900 FPS
This load is sub-MOA from my rifle (22” Savage). It is hotter than the Hornady book max, but 2gr less than max in a couple other books.
It will cleanly take deer at 300yds.