I was doing some research for acquiring a barrel for a .260 AI build and came across PAC-NOR. I read many reviews and it appears people had mostly good things to say. Couple comments claimed they were better for the shorter barrels ( i.e 20-22"). Furthermore, looking at the competition shooting results most people use Krieger, Brux, Bartlein, Douglas, Broughton, Hart, etc. Thoughts...