D'Arcy Echols is pretty well sold on H1000 for 200 grainers in the .300 Wby, and he builds quite a few.
Personally I like the Weatherby factory loads with the 200 Partition. Pricey, but they get exactly what's claimed in my 24" barrel (Vanguard Sub-MOA), 3060 fps, and fine accuracy.
If looking for a handload would also look in the area of H1000 and Ramshot Magnum.
JB
