I have the opportunity to trade out my RCBS two die FL die sets for the 7.5x55 Swiss, .308 Winchester and .30-06, for the same calibers in the Hornady New Dimension die sets. The New Dimension seating die has a sliding line up shaft that is supposed to keep the bullets straighter when seating. Is this a real advantage in loading accurate highpower rifle ammunition?
Has anyone tried the dies and is there an improvement in the ammunition being straight and concentric?