If anyone can sort out the gun, these two can, The gun functions perfectly as is. I have fired it extensively. I just dont like the fit of the barrels. It patterns high which helps with rising birds. I'm not into collector guns but I like small frames. I don't have much in the gun so I can't go off the rails very far. Any weight reduction from reaming will be insignificant, less than half an ounce. A lot more weight will be removed by taking off that thick pad and putting on a thinner, lighter one. My goal is to remove excess metal in the barrels, but leave enough metal to withstand even magnum loads, not that I'd ever use them. I want the forcing cones lenghtened so that transition to the bore from the chamber is less traumatic to the shot. If a larger bore is what they accomplish, that will ease pressure and therefore stress on the gun. I will probably need to have a set of choke tubes installed, since the left barrel already has a colonial tube. The gun having been restocked lessens the chance of old wood failing from stress at the head of the stock. I do appreciate all of the comments and interest. I always learn something here. I did order a copy of
Bob's book. I would appreciate suggestions on other books addressing shotgun performance and the effects of bore and choke dimensions. I have all of Gough Thomas and Michael McIntosh's books.