All you needed to do was lap a shell holder on wet and dry sandpaper removing a few thousandths at a time until the case would chamber.
I tried that as recommended from members on this forum, could not get enough to get it done. I ended up having a machine shop surface grind the bottom of the die about .015 to get me enough to resize brass for it. When I sold that gun that die went with it. If I really liked it I should have sent it back to Winchester and made them fix it but it really wasn't a great shooter anyway.