You do not say what type of shotgun you have - I would call possibly Kohler in Racine WI. They deal in both Kohler and Krieghoff. Very high dollar guns (if you want them to be!!) and I am sure they would know who can do the work you desire or tell you if (other than sentimental reasons) the barrel is worth straightening. Plus they could tell you if your barrel is just to far gone.
Another place to call is Chadwicks in Tyler TX - dealers of expensive guns so they also may know of someone who may be able to do so. I recommend the expensive shops because at the prices some of these guns go for it is not easy to just buy a new one- like say a barrel for an 870.
