DJ, with all due respect, and I hold great respect your ideas and experience, I doubt that 5744 woud prove the equal of H110 or 1680. Accurate Arms data show max loads:
210 grain lead, 17 grains, 1518 fps 45,300 cup
Nosler 158 JHP, 21 grains, 1825 fps, 42,9000 cup
Sierra 170 JHC, 20 grains, 1711 fps, 42,800 cup
Hornady 180 SSP, 22 grains 1781 fps, 44,100 cup
Speer 200 TMJ, 18 grains 1497 fps, 41,700 cup
At these pressures, I doubt that 5744 would catch up to H110 or 1680 before it peaked out. Not trying to flame or one up or anything like that, I like 5744 for low pressure/low volume loads, but there are better powders for almost every application where the highest velocity is desired.