I am using a Federal paper hull, 11/8oz of #8 shot, Federal primer and #31 MEC bushing ( I think it is about 18.5 grains). The load chrony'ed at 1200 fps.
I only use this load for handicap. 700x seems to kick hard compared to other powders like Green Dot or Promo although that may just be my own imagination.
Jacky