I know a lot seem to use the Leveroloution powder but I hear it is pretty dirty.
What are some other powders you all have found to work well for the heavier bullets like the 103s etc.
Looking at maybe trying some CFE223
You have a quite a few options to choose from though keep in mind as you step away from LVR their will be less velocity experienced. Hodgdon is one of two good options for Hornady load data. Are you looking at loading for a gas gun or bolt action? Hornady data links below for gas gun pressures & bolt gun pressures. Yet their are more propellant options than included in this data.
Yet most of the propellants available to us are addressed in the sources touched on here. So many bullet options out there, you are not going to find published data for all projectiles out there. We are left to extrapolate to one degree or another if we wish to work with alternate projectiles.