New STI Edge and I'm trying to work up some good loads with Extreme's 147 RN HPCB. I tried 3.5 titegroup and loaded them a few different lengths but they are not at all accurate at 25 yards - flyers all over the place, no matter what length. At 15 yards, they'll hold within a 5" group (which is not great), at 25 - horrible. The latest I ran was 1.155 OAL with a very light crimp, better but not great - just not accurate. The guns is very accurate with factory ammo, however I only have 125 grain factory ammo, not 147. I have heard these guns do not shoot accurately with plated ammo but I'm not sure if that's my issue. I would be willing to try different bullets, but wasn't sure what to try next.