I am in the beginning stages of building a double rifle. I'm trying to decide on a caliber. I just wanted some personal preferences from people. I am trying to decide between a 9.3 x 74r or a .405 Winchester. I will probably never make it to Africa, but I will eventually be hunting bison and bears with the rifle. I'm leaning towards the 9.3 , but I can't find a whole lot of info on the 405 except that Teddy liked it! I'm looking for real world info. Any help would be great. Thanks!!