I read the described situation and desired change several times and I can't say I understand it clearly.

If it has thinwall screw-in choke tubes in both barrels, what "fixed choke" are you trying to open up? I'm thinking you want to open up the screw-in choke tube? Why not find out what type of choke tube it is and buy another of the choke you desire?

If it has non removable sleeved chokes, they will not likely be chromed.

Last edited by Chuck H; 07/15/09 10:37 PM.