even heat didn't do the trick. Using a quarter in vice grips and quarter is bending. Don't understand it, I've been switching chokes in this gun for 20yrs and never had this problem.
Getting good patterns out to 30yrds with turkey loads so now trying to decide if I should take it to a gunsmith, or just toss the other tubes and just consider it a fixed choke.
Prob take it in though because turkey choke cost me over 50$ just last year.