At the low end of the price spectrum, the inexpensive nylon-jacketed (yes, I said nylon), aluminum-cased 115gr target rounds marketed under the Herter's name at Cabela's has been very dependable. Feeds well, loads well, and not very dirty. Obviously, not something for the reloaders in the group as this is not reloadable.
http://www.cabelas.com/product/Herte...s#BVRRWidgetID