B.Graham:

I use Clays in both Remington and AA hulls and 7/8 ounce shot. The AA loads are at about 1175 fps, the Remington loads (used for sporting clays and a local international speed wobble trap game) are at 1350. Both loads are in a recent Lyman Shotshell reloading manual and probably on the manufacturer's web site as well.

I use the two different types of shells to differentiate loads for my older British sxs from the modern guns.

Can't help with the 700X information.

Rem