Speer TMJ Handgun Bullet .355 115 Grain Total Metal Jacket Pistol Bullet 100. Some break up expand and penetrate while others expand upon impact. Your bullet needs to be a good match for your ammunition otherwise you run the risk of under or over shooting. That's where Speer TMJ bullets come in. These 9mm sized bullets meet the ballistics needs of modern medium and heavy duty handguns. While jacketed TMJ bullets perform well they are not as good as bonded TMJ bullets Uni-Cor technology completely encases the lead core in a seamless copper jacket which reduces fouling and airborne lead. If you're looking for a more consistent bullet with a uniformed heel and diameter Speer Uni-Cor bullets are the way to go. Specifications for Speer TMJ Handgun Bullet .355 115 Grain Total Metal Jacket Pistol Bullet: Manufacturer: Speer Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 115 grain Sectional Density: 0.013 Condition: New Projectile Caliber: .355 Caliber Bullet Quantity: 100 Bullet Fabric/Material: Copper Features of Speer TMJ Handgun Bullet .355 115 Grain Total Metal Jacket Pistol Bullet Uni-Cor technology completely encases the lead core in a seamless jacket Design eliminates the accuracy-robbing features of conventional full metal jacket bullets Reduces fouling and airborne lead Consistent bullet diameters and a uniform heel Package Contents: Speer TMJ Handgun Bullet .355 115 Grain Total Metal Jacket Pistol Bullet Speer 3995: TMJ Handgun Bullet .355 115 Grain Total Metal Jacket Pistol Bullet 100