Yes, you can use AA#2. I have used #2, #5, #7 and #9 in a variety of calibers (.357 sig and mag, 44spl and mag and 10mm) and they always seem to produce good loads. Just remember to start at the bottom of the range (about 5 or 6% under the maximum) for the load you desire and work your way up. #2 is a pretty fast powder! AA prints a pretty good powder manual and you can get loads from their web site
www.accuratearms.com.