yeah, I am probably going to go with a 1 in10" twist. This seems to be the go to twist for 180-220gr bullets from what I have seen. I really don't want to shoot 150s in this gun. I want to see if I can get this thing to shoot good out to 1k or so. Would love to be able to pull a 1700yds, but most 06 will go transonic around 1400yds or so, so accuracy will drop off. But I am just trying to figure out what direction I want this project to go. I originally wanted to do this as inexpensively as I could, but now I am not sure. I am getting torn between getting a Pac-Nor or Benchmark barrel or just cheap out and get a mcgowen from one of the vendors on here. I am thinking about just nutting up and spending the extra on a benchmark. Plus they aren't that far away so I could just drive up and pick it up one afternoon, which could be fun. But I don't know why exactly, but I just love the 06. Easily one of the most versatile rounds out there.