In the past I've used AA2, 5, 7 and 9. For 9mm, .45acp, 10mm and 44 Mag and probably .357.

Like the guy said above, don't know why I don't use it more often...it's been good to me over the years.

Some of my favorite 9mm and .45acp use AA5, I haven't tried it yet in .38 Special, however it is on the agenda.

They have a free online download for their data...very helpful.