For a long time I've used Sierra for 77gr .223 bullets, but recently decided to try the hornadys because they are about half the price and just as accurate in my limited testing. I decided to revamp my powder choices as well to see if anything worked better. I've used Tac, BLC(2), and Varget in the past. Tac is my preference for the most part. I was wondering if anyone has used others or if one of these three has been the best in your experience for the Hornadys.