I also agree with Flags. Try different brands and different weight bullets in your rifle before you stockpile a supply. My "dedicated" deer rifle is my .257 Ackley, and being a handloader, I like to tinker with different bullets, so over the years I've shot bullets from Sierra, Nosler, and Hornady, and in bullet weights from 115-120 grains. They all did an excellent job of killing the animals that I shot with them.
Most of the hype about different bullets is just a marketing ploy by the different manufacturers to sell their bullets. With a properly placed hit, deer are not that hard to kill, with just about any bullet.