I bought a new 270 a little over a year ago. And since I don't reload, I bought about 10 boxes of ammo, different manufacturers with different bullets (130-140-150) to see which grouped the best. Two tied for consistent groups at or below MOA. The Win Sup 140 Accubond and the Rem Ultra CLs 140gr. I shot 5 deer this season with the Rems. All 1 shot kills thru the chest. Of course, the accubonds would probably have done the same thing I believe. As far as I am concerned, the Rems Core-Lokts Ultras are my "go to" bullet for deer.