I see it only recommends those bullets for the .458 lott in single shots. Why would that be? Looks like they offer a good crimping opportunity. Are they just too long to feed properly in a bolt gun? In this neck of the woods, I definately will be looking to chunking a good cast bullet of this weight at 1300-1500fps in my .458 lott for practice and for white tail deer. Looking forward to hearing your experience with these bullets.