According to QuickLoad (note the 1.160" COAL):
Powder ------- MV (fps)
Bullseye ----- 729
Red Dot ------ 802 (yes, eight-oh-two -- I triple-checked)
Green Dot ---- 759
Unique ------- 646
H-Clays ------ overpressure
Titegroup ---- 753
HP38 --------- 704
H-Universal--- 697
VV 320 ------- 750
VV 330 ------- 677
W-231 -------- 694
This was closest predicted to 710 fps MV:
Because of variability between lots of powder, differences in component particulars (brass, primers, etc) and seating depth, QuickLoad isn't at its best until you've tweaked powder properties so its predicted MV jives with what you're getting in the real world.
“This was everything I could find in my powder database (and QuickLoad doesn’t have an extensive pistol powder db) that was as fast as Unique (646 fps MV) or faster.”
Thank you very much, Paul. This is very helpful.
So few variables to such a specific load.