Hornady .284 7MM Cal 175 Grain Eld-X Projectiles 100 PackThe ELD X (Extremely Low Drag eXpanding) bullet is indeed a remarkable advancement in bullet technology, primarily designed for hunting purposes. Here are some key features and benefits of the ELD X bullet: High Ballistic Coefficients (BC): The ELD X bullet boasts one of the highest ballistic coefficients in its class. This means it experiences less drag as it flies through the air, resulting in flatter trajectories and better long range performance.