I have a Stevens 22-410 that was my Dads. He had rechambered to 22 WMR many years ago, and fired only 22 WRF (special) ammo in it. He bought this gun in 1947, the year I was born. It will not extract a fired case, the cases split when fired. Can this chamber be bushed and rechambered, or what can be done to fix it? I still like to carry it in the fall bird hunting.