Who is this fking retard 'sgt_zim" from Africa hunting.com?
Get a load of this hypothetical-thinking-outloud bllshit::
"SAF 300 gr, you're looking at MV around 2250-2350, with a relatively low BC. That makes that bullet about a 150 yd bullet for reliable expansion (swift says they'll expand down to 1800, but if you look at their images at that velocity, they are underwhelming)."
Tell him to look a ways back in this thread, about what a 300 swift a-frame does at 500 yards on a bull moose or at 400 yds in thin skinned game like caribou.