The least expensive bullet made may not be the best preforming bullet after you hit the deer. In my .308 Remington 150 grn coreloct have always done a superb job for me, many drop in their tracks right behind the shoulder. In my 45-70 I use Hornady 325 grn lever evolution and they are like a bolt of lightning behind the shoulder. I subscribe to buying the best round that preforms well in your rifle upon impact with an animal. It isn't like we shoot two or three boxes of hunting ammo a year for the most of us.