Winchester Service Grade 40 S&W Ammo 165 Grain Full Metal Jacket ammo review offers the following information; When it comes to outstanding performance and affordable pricing, Winchester USA 380 ACP Auto ammunition is great for shooters needs! Winchester 40 S&W ammo features a 165 grain Full Metal Jacket bullet loaded in reloadable brass cases and boxer primer. Winchester Service Grade ammunition was developed to provide excellent performance at an affordable price specifically for the high volume shooter. Service Grade ammo is built using high quality Winchester components delivering outstanding reliability. This ammunition is new production, non-corrosive, in reloadable brass cases. Winchester Service Grade is an excellent choice for competitive and recreational shooting applications.