Makes sense to me and I've used both powders in both cartridges.
What makes even more sense is WC-820(f) from
www.gibrass.com It's a surplus powder that is dead on HS-7 in burning rate and is selling for $56 per 8 lb jug. I've only used that in the .41 Mag because I am not shooting a .45 ACP at the moment.