No idea on speed except should be well over 3000 but I have just had great results with 26grains of H Varget, ppu brass, 40g Vmax pretty much all touching at 100 yards, federal primers.
Also my 55g Vmax in same 1inch circle but a slightly wider group with 25.5 of H varget. fiocchi brass.
Rifle CZ527 1 in 12.
Also Hornady factory loads v max 40g hitting same circle. They say 3800 fps on box.
So 3 different loads very happy as I can pick up rifle without worrying about grouping differently. Certainly not at 100yrd any road.