Ran two boxes of 140 grain Corelockt ultras thru my 7 Rem mag..very impressive accuracy and probably all I need for anything on this continent if they perform like they advertize. They probably hold up better then original corelockts and that would be a good thing since the newer corelockts have a skimpier jacket on them. can't wait until they release it for reloading components and I give it a try on some wild hog.