The 0.303 British is a rifle cartridge that was first introduced in 1888. It was designed for use in the Lee-Enfield rifle and became the standard military cartridge for the British Army for many years. The cartridge is known for its accuracy and effective range, making it popular among both military and civilian shooters. The 0.303 British cartridge typically features a bullet diameter of 0.311 inches and a case length of 2.222 inches. It is often loaded with a variety of bullet types, including full metal jacket and soft point, allowing for versatility in different shooting applications.