I used RC4 Champion 24gm in Portugal at the UT European Champs as Fiocchi weren't available. The eye watering price was 9 euros a box, no bulk discount so 360 euros per thou, captive audience? I thought there were very good, perhaps less recoil than my usual FBlack 24gm and very good kills through my MK38 choked 3/4 & 3/4.
They aren't the holy grail though as I still missed with them.