Cant say about the 700x, but have loaded International Clays and Green Dot with the clay buster 20 ga 3\4 oz wad. LIke the Green Dot better if only for the stack height in a Rem STS hull and how the crimp comes out.
I load to 1180 fps over a chrony and in an IC choke with 9 shot they are target smackers for sure. Very easy on the shoulder and break the clay for new shooters.
If it were me, and I really had to have that load, I'd start with Hodgdon 700X data for 7/8 ounce in a Federal hull with the (Claybuster) AA20 wad. I'd use the new Claybuster 3/4 ounce AA-type wad and drop 3/4 ounce without changing anything else. The only sticking point is that it must be a Federal hull, not any other.
Of course, I'd never recommend anybody else do that.