I have an old model 37 featherweight Ithaca that I bought more than 50 years ago. I was a great old gun. 2.3/4” chamber and a 30” full choke barrel. Years ago it began to give me problems so I put it aside and bought a bps. I am retired now and I would like to rebuild this gun to be functional again. The problem was that it would drop unfired shells to the ground when I would cycle the action. One in the chamber one on the ground. I looked at the shell stop and it’s chipped. I have located parts and it seems straight forward to replace. I know that the choke is to tight for steel shot. Any advice on opening the choke to improved? I will have to refinish the wood and replace other parts but it a project I will truly enjoy. Looking like there is a back surgery in my future so I might not have much of a hunting season this year and a project gun might just keep me going.