Concerning AA9, maybe I'm the oddball here but I never get anywhere near the listed velocity using any of the AA powders (in 10mm anyways), well except that I've not tried AA7 yet. AA5 for instance claims essentially 1200 with a book max load from a 5" bbl, and I only get south of 1050 fps from the 20. AA9 claims almost 1250 fps with 13.5gr but with 13.2gr I'm not even touching 1150 avg from my G20.
Granted I need to work up some more loads for it since I haven't dealt with AA9 much at all, but it seems like a lot of powder for so-so velocity. 8.0gr Unique was getting me the same velocity as 13.2gr AA9, roughly 1145 fps. Too bad Unique isn't the most consistent metering powder out there. It's also too bad striking oil in the backyard is easier than finding a jug of 3N38, because 11.5gr of it is getting me a 1350 fps out of a 180gr JHP from my stock G20, which is a little faster than what I like to push a 180gr, but the point is, it works very well.
"There is a principle which is a bar against all information, which is a proof against all argument, and which cannot fail to keep a man in everlasting ignorance – that principle is condemnation before investigation."
Last edited by SDGlock23; 07-09-2013 at 18:38..