- Jul 18, 2016
Hey fellas, so I have a 6.5x284 that is shot out and I am considering trying the “Blackjack Bullets” 131 grain 257. Building a 25x284 on either a Hawk or Proof barrel as they offer a 1-7.5 twist. After doing a little investigating it seems that Sierra is building the bullets for Blackjack. Anyone hear anything in the rumor mill or better yet any experience?