DoubleTap Home Defense Features The Home Defense series is engineered for reliability and effectiveness in personal defense situations. The .357 Sig caliber is known for its high velocity and stopping power making it a popular choice for self-defense. The 115-grain Controlled Expansion JHP bullet is designed to provide reliable expansion upon impact maximizing stopping power while reducing the risk of over-penetration. This makes the ammunition highly effective for personal defense. DoubleTap Home Defense Specifications Brand: DoubleTap Ammunition Category: Centerfire Handgun Rounds Series: Home Defense Model: Doubletap Caliber: .357 Sig Rounds Per Box: 20 Casing Material: Brass Muzzle Energy: 663 ft lbs Muzzle Velocity: 1612 FPS Application: Personal Defense Bullet Type: Controlled Expansion Jacketed Hollow Point (CEJHP) Bullet Weight: 115 gr