Hornady .50cal Bore Driver 3499 290 Grain FTX 20-count. 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 the FTX bullet featuring a rugged gilding metal jacket coupled with patented FlexTip technology and an InterLock ring that deliver maximum lethality. When you have one shot this muzzleloader season make it count and use the best - Hornady Bore Driver FTX Specifications for Hornady .50cal Bore Driver 3499 290 Grain FTX 20-count: Manufacturer: Hornady Bullet Type: Jacketed Hollow Point (JHP) Projectile Caliber: .50 Caliber Bullet Weight: 290 grain Quantity: 20 Lead Free: No Bullet Quantity: 20 Bullet Fabric/Material: Polymer Number of Rounds: 20 Features of Hornady .50cal Bore Driver 3499 290gr. Ftx 20-count: LOADS FAST AND EASY Without a sabot the Bore Driver FTX seats quickly and easily for shot after shot performance. MAXIMUM LETHALITY The FTX bullet incorporates an InterLock 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. PATENTED FLEXTIP TECHNOLOGY FlexTip initiates expansion even at low velocities enabling enhanced muzzleloader terminal performance. 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. Package Contents: Hornady .50cal Bore Driver 3499 290gr. Ftx 20-count Hornady .50cal Bore Driver 3499 290gr. Ftx 20-count