Hornady ELD-X Features The Hornady ELD-X bullet at the heart of the Bore Driver system uses a rugged gilding metal jacket paired with Hornady s polymer tip technology and on impact that tip drives into the lead core like a wedge to initiate lightning-fast yet controlled expansion. An InterLock ring built into the bullet s design helps it retain weight through the target working together with the copper alloy jacket to deliver deep penetration alongside reliable expansion for genuine on-game lethality. Because the Bore Driver system uses a polymer base rather than a traditional sabot these bullets seat quickly and easily in the muzzleloader for consistent shot-after-shot performance in the field. The 280 grain weight carries a .315 ballistic coefficient and a .217 sectional density numbers that translate into flatter trajectories and deeper penetration than lighter less aerodynamic muzzleloader projectiles. Hornady designed this ELD-X bullet to meet Colorado s specific muzzleloader hunting regulations giving hunters in that state confidence the projectile is approved for use before they head afield. These are component bullets intended strictly for handloading a Bore Driver muzzleloader charge and are not a loaded ammunition product so reloaders should pair them with an appropriate powder charge and primer per their manual. Hornady ELD-X Specifications Brand: Hornady Line: ELD-X / Bore Driver Caliber: .45 Cal Diameter: .458 Grain Weight: 280 gr Ballistic Coefficient: .315 Sectional Density: .217 Rounds Per Box: 12 Available At: GrabAGun