In firearms, a choke is a tapered constriction of a shotgun barrel 's bore at the muzzle end. Chokes are almost always used with modern hunting and target shotguns, to improve performance. Its purpose is to shape the spread of the shot to gain better range and accuracy. Chokes are implemented as either screw - in chokes, selected for particular applications, or as fixed, permanent chokes, integral to the shotgun barrel.
what do the chokes do on a shotgun
to shape the spread of the shot to gain better range and accuracy