TKS, Steve - Elmer noted in print in Am.Rifleman or G&A years ago, that the 270 was tougher than the 300. If this still holds true, as mfgring changes with time, then perhaps we need 2,300fps plus for consistant results. Lead and guilding metal is all that's needed for these relatively low velocity rounds. The harder to expand expamples like the 270RN, 270SP and 300gr.RN then become the 'premium' bullets, while the softer ones like the Privi's and 225SP's are the normal bread and butter bullets.