I tried to use 140 grain factory remington corelokts in a new 7mm-08 this year for my wife to deer hunt with, the gun simply wouldn't shoot them near my expectations, the best I could get was a 5 or 6" group at 100 yrds, I went home and pulled the rest of what factory stuff I had apart and starting reloading for it, the very first load I tried shot sub moa, I decided that was plenty good enough and quit