Mostly good advice so far Rick, and I answered your PM.
760=H414=Accurate 2700. All precisely identical, made by General Dynamics in St. Marks, FL. GD's powders don't burn dirty unless pressures are low, as already stated. On the flip side, unlike ADI's "extreme" extruded garbage, they don't produce hard carbon fouling. I love when Varget shooters think the barrel is shot out, until you show them the fouling donut in their barrel on a scope. 760 will show more of an "ashy" fouling than extruded, but doesn't take the scrubbing to clean. Although certainly not in the same amounts, contains the same Tin/Bismouth compounds as GD sticks in SMP-842 for the military "green" ammo. In the canister grade world, we call that CFE223. Copper cleaners been in it for a very long time, just didn't get the marketing hype that Hodgdon is currently pushing.