223 ammo is used in rifles for several uses, including hunting, concentrate on taking pictures, and self-defense. It is a popular caliber for its accuracy and versatility and is commonly employed by gun lovers. The 243 ammo copyright is actually a centerfire rifle cartridge having a bullet diameter of .243 https://gunnerldcmx.national-wiki.com/1340998/new_step_by_step_map_for_buy_remington_primers