My question would be: what is the difference, and why between so-called "clays" chokes and any other when the apparent dimensions (extended) and choke (full, extra full, etc) are the same. Or aren't they the same if the application is different? In this case clays vs turkey.
I have NO idea what you are trying to ask...chokes are chokes.they do ONE thing, constrict the muzzle to make the shot either open up the pattern or stay together for distance
“I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.” - Robert McCloskey