I've heard of First Strikes, special paintballs made by Tiberius Arms. They have "skirts" on them to stabilize their flight, flying a little straighter & gaining a little more range than conventional paintballs. However, this skirt makes them impossible to use with most loaders/hoppers. For instance, Tiberius' own markers use clips that can load First Strikes. A couple other companies make First-Strike-compatible markers, but no loader to actually feed them - they have to be fed by hand, one by one, into the side of the breech.