Fast and easy to load, Hornady Bore DriverA(R) Bullets deliver the ultimate in muzzleloader performance. At the heart of this non-sabot projectile system is a polymer base that seals the bore to deliver maximum energy transfer and accuracy. Atop the base is an ELD-XA(R) or FTXA(R) bullet, featuring a rugged gilding metal jacket coupled with polymer tip technology and an InterLockA(R) ring that delivers maximum lethality.