Reed...I`d gotten a super match in .223 AI, 8 twist from them. Could not get the thing to shoot to my expectations...checked the lead, and found it to be longer than I had ordered..had sent a dummy round...called pac-nor bout it. Ended up seding the barreled action back. They set the barrel back one revolution...60 thous... and the rifle now shoots.
So, don`t know if all .224 cal. barrels are chambered the same, but if you haven`t checked you`r lead, try it. Could be the cause of poor performance.