I would neck down and then use my Forster neck turning tool. It is amazing how out of round some necks are. Then you can turn to the specs , and have concentric necks . You could also neck it a little thick and see if it doesnt get stuck. If it doesnt , that means you will have less slop in the chamber. Some people say some chambers are sloppy.

But the fruits of the spirit is love, joy, peace, patience, kindness, goodness,faithfulness, Gentleness and self control. Against such things there is no law. Galations 5: 22&23