I've used AA#7 in 9mm Luger, 38 spcl, 357 mag, 40 sw, 44 spcl, 44 mag, and 45 acp. My 38 spcl data came from this site. http://www.loaddata.com/members/listing.cfm?type=1
I had to join. It was worth it at the time. AA#7 wasn't the best choice, but it was accurate in our model 10. I don't remember the exact load, though I do remember it being with a 158gr swc. It's been years since I loaded it, and have since moved back to RD, BE, and Unique. It does work really well(for me) with all the other cartridges listed, especially 9mm, 357 mag, 40 sw, 44 spcl. and 45 acp.
The old Accurate manuals actually listed 38 spcl AA#7 data. You may be able to find one of them. You could also call Sierra bullets and talk to a tech. I've had them mail data to me, for obsolete cartridges and other products, as well as their own.