I have two in mind. .223 Rem and .375 Whelen. Those would give me the best of all worlds for centerfire hunting. I don't mind the extra case work. I have done 7TCU, KHornet, 35Whelen, 308X1.5, .33 WCF, .38S&W from Special cases, 458 American, 7.65 Argentine from other cases, and others I have forgotten. Lots of room between 223 and 375. Bandito