Have JP, Lilja, Bartlein, two Saterns and an Alexander Arms barrel to draw my experience from. Bartlein at the top, JP/Lilja just a tick behind, as are the cut rifled Saterns. Each with slightly different throat dimensions, Bartlein, JP and Lilja allowing longer OAL’s, Saterns require short OAL, so some compression of some powders that make BTO dimensions a little tricky to hold, but they do shoot very well. Just did a throat ream on AA barrel and have not shot yet, but it’s always been temperamental. Only Krieger I have is a 6.5-47, but it’s a laser. You would not be disappointed with JP or Lilja, and they both have a variety of profiles to chose from. The Bartlein is the most accurate semi in my inventory, of all calibers.