Atomic's 45 ACP Subsonic ammunition is designed to be the quietest, hardest hitting, deepest penetrating, heaviest 45 ACP bonded hollow point on the market. Designed with power, sound suppression, and recoil in mind, this cartridge is loaded in a "Ducta-Bright" nickel-plated case with a 250 GR bonded match hollow point bullet, and clean burning powder. It was created to hit like a sledge hammer, retaining 99 percent of its mass and penetrate more than 15 inches of ballistic medium.