RE: stuck choke tube
This is a simple one.If you cant find it local-order you a can of corrossion x .Let it soak for about a 5 days,it will come out.Next time you put a choke tube in ,lightly spray it with Cx and then screw it in.Good luck.
Ps.Dont shoot anymore rounds through it-the steel shot flattened the surface of the tube causing the choke to get stuck.Chokes designed for steel vs lead is the reason for it...let it soak,when you apply pressure make it a constant one and it will come out.