My 6 Ackley was also built for speed. 26” hart 12 twist. On rem 700 SA. It certainly is fast. 55BT would nudge 4300fps. I always wondered what it could’ve been on a long action and a fast twist barrel. But I built a 6x47 Lapua with an 8” twist 28” long. I love it. The Ackley is pretty hard on barrels. Had it set back once already and now load it down a fair amount. 55’s at 3900 and 70’s about 3600. If you’re already set up for the 6x284..... maybe just get a new barrel for that.
Ben
