Paper clip test. If they pass and chamber without difficulty after full length resizing, they should be safe to reload. If you measure the brass just above the belt, it should not exceed 0.513 inches. If it does, the Willis die will reduce the brass just above the belt to 0. 509 inches.
I use the Willis die for 300 magnum Weatherby brass when it is difficult to chamber.
I use the Willis die for 300 magnum Weatherby brass when it is difficult to chamber.