You may find that the AA7 doesn't burn as well at the lighter loadings...it, like other powders like to be near the upper pressure range to perform and burn cleanly.
But I will welcome the data you observe and share also. So good luck!
BTW I just loaded some 9X25 Dillons with 121gr. JHP's over some AA7 tonight...these will get tested from the S&W1006 and the Glock 29 both stock length barrels for each.
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