There are so many good ones out there now, it will depend on which one your gun shoots the best. Remington, Hornady, Federal are all good places to start. Doubletap has been a good ammo so far. Started out making personal defense ammo and has expanded quickly. Any bullet 150-165 grain will do well on deer. When I shot factory ammo all the time I actually killed the most deer with plain ol' Remington cor-lokts, longest shot with the 308 using that ammo on deer was 290 yds. I reload now, but still use the cor-lokt bullets my 25-06.