I god in consultation with John Moses Browning had come to the conclusion that sticking a potato on the end of a shotgun barrel was a decent moral thing to be done, every shotgun after the Winchester model 97 would have had one.
The only thing they are good for is to use it like knob end on a baseball bat. Used thus, a poly choke is a useful addition to a shotgun barrel when you need a club for beating on something/one.
