They carry handgun ammo, it is just usually too expensive. Very seldom do I see handgun calibers on sale. Was just there and shotgun shells were all I saw on sale.
I Clay Terrace the Dicks sells handgun ammo but it is all behind the counter. I have never found it to compete with about any regular gun store and definitely not online vender's.
LOL. For the last ammo "sale" they had in my town (that I paid attention to anyway), they jacked the price up over their regular price and then offered the "deal" which ended up to be slightly more than their usual price. The Monday after their sale, the ammo went back to the regular, lower, pre "sale" price. Incredible.
I think I might have bought some American Eagle 9mm there for around 9.99 or 10.99 a few months back. I was surprised at the decent price. They usually don't have a huge selection.