I know this thread is about the 358 Winchester but I figured I'd chime in, since there are several comments about the 220 gr Speer bullet. In my 350 Rem Mag, I get the best accuracy for the Speer 220 at an average MV of 2,560 fps, which is not a max load. I have been getting a 5-shot, 100 yard group of between 1" - 1.5", depending on my shooting ability on any particular day. Thus far, I've shot deer varying in ranges of 30 - 120 yards and this bullet has performed excellently. Good blood trail, though the deer don't travel far if at all.