Up front let me say I have no experience with either. According to Taylor
(Ponderosa)"(Pondora)" in his book African Rifles & Cartridges there is virtually no difference in the ballistics, thus usefulness of these two rounds along with several others. At one point in time any rifle in .45 caliber became illegal as a "Military" caliber in some locations thus a proliferation of other calibers to take the place of the .450NE. This included the .470NE as well as .465's & some others. They pretty well all served the same purpose. Taylor though highly of them all incidentally.
Last edited by 2-piper; 03/22/18 02:57 PM. Reason: Correct wrong name