Sig Sauer 365 Elite Performance 9mm Luger 115 Grain Full Metal Jacket - 50 Round BoxThese advanced self-defense cartridges are designed to pair with carry sized pistols that have small barrels of about 3 inches. Sig Sauer 365 ammunition reaches terminal velocity quicker and burns propellants entirely before the projectile leaves the short pistol barrel. This is unlike many other cartridges which are not optimized for small pistols and short barrels and leave powder un-burnt or burning after the bullet has already left the barrel. Additionally these advanced rounds are loaded for a softer felt recoil so in a lightweight carry pistol muzzle flip will be far less severe allowing for more accurate follow-up shots and more confidence in every trigger squeeze.-Proven Sig Sauer quality and reliability.-Optimized for consistent performance; expansion weight retention and depth penetration.-Newly produced reloadable casings clean-burning propellants and reliable Sig Sauer boxer primers.-Made in the USA