They're bullet enough for what you've got. If you were shooting some faster cartridges or dropping down to less than a 150gr bullet I'd suggest something else, but for in 308 using 165gr-180gr bullet your'e not very likely to see a difference. All the big game rifles I have (or have used) that have a sub 3,000 fps muzzle velocity get fed Cor Lokts or Interlocks (same technology) and they do great on elk. 7mm-08, 308 win, 280 Rem, 30-06, 338-06 have all done great with non-premium bullets. With how well each rifle shoots I'd never consider spending 2x the money for each bullet when I know terminal performance will be nearly identical.