It appears that there is not much interest in the 338 federal on a long range hunting site... I wonder why? I have one in a Kimber Montana, I've had wonderful results with this cartridge in AK. I have been shooting factory ammo to date, but just bought some Redding dies for it. I have no data to share currently, sorry. Did I mention that I love this cartridge? I have shot partitions but I'm currently loading Barnes 185 TSX
I conur on the cartrides game hammering capability. I've taken Mountian Goat, Black tail deer, Muskox and Bison with mine. This by far is my favorite rifle, but I have not taken a shot over 200 yds.