I am in the process of working up a good load for this caliber. I had always heard it was a bit finicky and this seems to have been pretty much what I have found. I want to use 160 gr bullets and have found Berger 168 gr. and Nos AB 160's with Retumbo wanting. I will be moving on to IMR 7828 and will be trying some Barnes TSX's in there somewhere. I am interested in general what other reloader's experiences have been regarding reloading for this caliber.