Here's some data from when I worked up loads on my honcho. Weather was about 50 degrees iirc. I forgot to write it down in my notes.
10.0gr AA7, 124gr RMR, 1.165 oal
Fps: 1376, 1378, 1364, 1370, 1361
8.2gr HS6, 124gr RMR, 1.165 oal
Fps: 1362, 1373, 1376, 1361, 1371
Both felt about the same and the dot tracked the same. I ended up going with HS6 since it didn't fill the case as much and spilled less on my press.