I use 748 with Speer or Hornady. The bullet depends on the rifle, as some prefer one over the other. I load 34.5 grains with a 150 gr bullet and CCI-250 magnum primer.
170 grain bullet gets 32.0 grains of 748 with a CCI-250 primer. Both are out of Speer's #11 manual and work very well. The Speer manual actually has 748 being slightly more velocity than H335.
There are three kinds of men:
1) The ones that learn by reading.
2) The few who learn by observation.
3) The rest of them have to pee on the electric fence and find out for themselves..........