I really don't get all this rebore focus. The 8x57 and .270 are pretty useful rifles. The 9.3x62 is a wonderful thing and infinitely less bruising than a .416 of any species in the same package. Why not just go buy one? Unlike a decade ago, they are fairly common new or used. Among the modern rifles, I can highly recommend the Sako "Arctos" or Grizzly. It is my favorite bear rifle.