CCI Blazer Aluminum .40 S&W 165 Grain TMJ Centerfire Handgun Ammo provides maximum shooting pleasure, for minimum cost, by using aircraft-grade aluminum cases. Loaded with Speer bullets and CCI primers, Blazer Handgun Ammo functions reliably in all types of handgun actions. A great choice for high-volume target practice. Aircraft-grade aluminum cases Loaded with Speer bullets and CCI primers Functions reliably in all types of handgun actions