I have a 450 Dakota on a ZKK action that was cut from 24 to 21". The smith must have exactly hit the resonance point on the barrel because it shots every load within a 2" group at 100 yds. I have to add except Hornadsys. It shoots them 2" to the right and 2" low. They also shoot in a small group but not to the same point of aim. I usually shoot 96gr of XMR4064 with a 450 gr North Fork chronyed at 2300fps. Nice accurate and not abusive load. It will shoot into one hole at 100 yds.
