Faulty how? I do know the 1/7 twist was not conducive to good accuracy with the 90 grain rounds, or maybe there is another reason apart from twist, but that seemed to be the consensus of others, too.
My PSA upper shot sub-moa with the cheap 75 grain rounds from Eagle/Federal. I did pick up a 1/6.5 twisted barrel for it but haven't installed it yet. My roll has slowed due to rotator cuff operation. I hope to be shooting by the first of May, though.
