||The Early Neolithic site at Su Carroppu is distinguished by a remarkable incidence of obsidian geometric pieces showing a high rate of impact fractures. Yet, a low number and ratio of wild fauna remains occur in the site, all belonging exclusively to small game. Therefore we wondered what kind of target shooting these projectile tips were used for. Thus, we compared the Su Carroppu data with other coming both from several sites in Sardinia, Corsica, southern France, and from the ethnographic record as well. Finally, we advanced some hypothesis as for the functional, economic, territorial and ideological meaning of this set of geometric pieces.