Can anyone please tell me the O.D. of the Nu-Line 12 gauge choke Sleeve #1198620? I have an old Stevens model 110, 12 gauge shotgun that has a .742 bore. The barrel has been shortened and currently has no choke. The barrel has .096 wall thickness, with a total of .935 diameter. I was hoping to install one of these sleeves, but it has to be big enough, with enough thickness,, to allow a gentile tapering, down from the .742 bore.
The choke sleeve(#1198620) in question is 2 1/2" long, has an O.D. of .793", an I.D. of .715" and has a wall thickness of .016" on one end and .037" on the other end.