Hornady TAP 308 Winchester Ammo 168 Grain ELD Match ammo review offers the following information; Designed specifically for the 308 AR-10 platform and its variants, the resilient tip of the ELD-X® bullet aids in reliable feed and function, and the propellant is specifically tailored to efficiently operate in the AR-10. The 168 gr. ELD® Match bullet with Heat Shield® tip delivers the excellent terminal performance TAP Precision® is known for, but features a resilient, heat resistant polymer tip that improves the ballistic coefficient, resulting in higher impact velocities, less drop, less wind drift, and more energy on target.