Originally Posted by CTSixshot
You'll notice the die specifically for this on Grafs (probably others, too):
You'll have to determine which brass deformations are too great and cull bad brass at your own judgement.
Look this is really simple, get a die that re-sizes all the way down - Lee. These push-through dies are to compensate for dies with too great a flare at the base. The flare makes it nice and easy to use, especially on a progressive press, but that wont matter much when your ammo wont chamber in your match barrel.