Put this in the StaBall thread, but figured I'd share here as well.
Did my own temp stability test. 5 shots each set. Charges were double checked to +/- 0.01gr on a TRX-925 scale.
StaBall 6.5 - 147gr ELD-M - 43.0gr
Zero Degrees - 2681.7 AV, 36.6 ES, 12.4 SD
50 Degrees - 2687.4 AV, 33.4 ES, 13.2 SD
100 Degrees - 2695.7 AV, 26.9 ES, 8.8 SD
H4350 - 140gr Hybrid - 42.0gr
Zero Degrees - 2686.8 AV, 29.1 ES, 9.5 SD
50 Degrees - 2686.0 AV, 23.6 ES, 8.4 SD
100 Degrees - 2707.0 AV, 15.8 ED, 5.4 SD
Results:
StaBall 6.5 = 0.14 fps per degree.
H4350 = 0.20 fps per degree.