My 300WM absolutely loves FGMM 190gr and it has mysteriously outperformed all my calculators by 75+ fps. But things are obviously different rifle to rifle, buy a box of Black hills and a box of FGMM and shoot them both, then buy a case of which ever performs the way you want it to. I haven't shot anything but those two for Match purposes and wouldn't consider much else. Once you get a pile of brass I would talk to ChadTRG about some 208 gr's. I got deployed before I ever got a chance to try them but I would be willing to bet they are the heat downrange.
And I coincidently have several hundred rounds of 190gr FGMM bound for the for sale section once I make it home in a couple weeks.