For a long time, Sierra was king of the precision competitive target shooting world. Now, from what I read, it's Berger.
The one aspect of Hornady that I've observed is that they have an abundant supply of bullets. Some of them that I've used are excellent for the most reloaders, non-competitive target shooters and hunters, such as the 55 Vmax, 60 Vmax, 75 Vmax, 125 SST.
However, the best bullet on the market is no good if you can get it. It's the reason I moved away from Sierra which I used for over 40 years with outstanding results. But I couldn't get them so that cut it. I almost walked away from Nosler too but recently they increased their supply to reloaders. However, I'll walk away from them too if Nosler goes the route of Sierra.
PS: Hornady brass is not a bad as some report. I imagine like with anything else, you can also get a bad lot. But I used their 223 Rem brass, and it performed well for me. In fact, I consider it better than the recent runs of Remington and on par with Winchester, but Winchester has had a lot of defective cases in lots I purchased over the last 10 years or so.