SinterFire Special Duty (SD) 9mm Luger ammunition features a 100 gr lead-free frangible hollow point projectile. designed for maximum safety, this copper and tin composite bullet disintegrates upon impact with hard surfaces to minimize ricochet. It delivers a supersonic muzzle velocity of 1350 ft/s and utilizes reloadable brass casings. This load is specifically engineered to reduce over-penetration in home defense scenarios. Each box contains 20 rounds. Recommended use: home defense and self-defense. Safety Note Frangible ammunition is designed to break apart upon impact with hard targets to reduce ricochet and over-penetration risks. Always follow all safe firearm handling practices and verify range compatibility before use.