Do you recognize the make, model of this choke tube? asking cause it is not labeled, ~20 years old
I'd mic the inside,and that will get you in the ball park.
Looks like a Rem super full lead to me. I think they were .665
I'd say it's a factory rem choke
Kinda looks like my remington straight rifled turkey choke as well
Thanks for the responses, gonna get a mic and measure