Mikey, Winchester is currently offering a $2/box rebate on AA's. I bought a flat of 20's for $75. Makes them a pretty good deal at $5.50/box. The 28's in the same store were a bit under $90/flat.

I have had excellent luck reloading both STS and Gun Club 12's and 20's, but when I was reloading 28's, the STS was my 3rd choice--behind AAHS and Federal. Case mouths seem to crack very quickly.