Now in 45 Caliber.Fast and easy to load, the Bore DriverA(R) delivers the ultimate in muzzleloader performance. At the heart of the system is a polymer base (not a sabot) that seals the bore to deliver maximum energy transfer and accuracy. Atop the base is an ELD-XA(R) bullet, featuring a rugged gilding metal jacket coupled with polymer tip technology and an InterLockA(R) ring that delivers maximum lethality. Loads Fast and Easy - Without a sabot, the Bore DriverA(R) seats quickly and easily for shot-after-shot performance Maximum Lethality - FTXA(R) and ELD-XA(R) bullets incorporate an InterLockA(R) ring that helps retain bullet weight upon impact that when coupled with a tough copper alloy jacket, delivers deep penetration and expansion for the ultimate in on-game lethality Polymer Tip - Upon impact, the polymer tip drives into the lead core like a wedge, initiating lightning-fast, yet controlled expansion Performance-boosting Base - The polymer base features a post that fits into the bottom of the bullet. This post swells in diameter at ignition for better torque engagement from inside the bullet and the centering petals grip the bullet's boattail while the skirt engages the rifling to maximize energy transmission COLORADO COMPLIANT - Hunters in Colorado can rest assured, this projectile is approved for use in Colorado