Gamo .177 Caliber Lethal Pellets 100 Rounds. Steel core for weight balance and improved accuracy. Penetrates a metal plate up to .06 in. (.15 cm) thickness. Long polymer skirt for stable flight trajectory. Specifications for Gamo .177 Caliber Lethal Pellets - 100 Pack: Manufacturer: Gamo Caliber: .177 Pellet Projectile Caliber: .177 Caliber Number of Rounds: 100 Bullet Type: Pellet / Air Gun Bullet Weight: 5.56 grain Lead Free: Yes Package Contents: Gamo .177 Caliber Lethal Pellets - 100 Pack Gamo 632274054: .177 Caliber Lethal Pellets 100 Rounds