Big Barrel 2 34 Omaha. A dominant presence in Omaha since its introduction, Omaha is back for its seventh consecutive championship run. Developed by Alcoa and enhanced by Louisville Slugger engineers, Scandium XS alloy undergoes a proprietary heat treatment by Louisville Slugger, which maximizes the overall design, performance and durability of Scandium XS. This bat is designed for players between 13 and 15 years of age as well as younger players whose leagues allow bat diameters larger than 2 14".