Winchester Ammo USA4440CB USA 44-40 Winchester Lead 225 GR 50Box/10Case Winchester cowboy loads with it's flat nose, cast lead bullets and target velocities. Winchester top quality ammunition factory produced with the finest Winchester components and cast lead bullets. Each load is designed to work in revolvers and lever action rifles while recreating the ballistics of the frontier era and go easy on the firearms bore. With the clean burning, easy shooting, low recoil properties of these loads make them a great choice for any form of casual shooting.