Full dispersion is seen in which of the following

Choking Reduction of diameter at the muzzle end of the barrel of a shotgun is called choking Choking reduces the dispersion of pellets and holds the pellets together for a longer distance. Choking is done by adjustable and replaceable extensions. Barrel may choke bore or non-choke bore Choke-bore means the diameter of the barrel is reduced at the muzzle end. There are different degrees of choking like full choke, half choke, three-quaer choke, quaer choke. Ref: FORENSIC MEDICINE AND TOXICOLOGY DR PC IGNATIUS THIRD EDITION PAGE 137