Berry's 21019 Superior Rifle 300 Blackout/308 220 gr Spire Point 200/BoxBerry's Superior Plated Bullets are swaged and plated to final weight and re struck for accuracy and precision. They won't foul your barrel with lead. Plated hollow base bullets are designed for shooters who need increased accuracy. The hollow base allows the bullet profile to be longer and provides more contact area with the barrel and rifling to stabilize the bullet and improve accuracy. The bullet profile is longer but the weight remains the same