I've just returned from South Africa. For three years now after coming up with a perfect load of of what I would describe a perfect load of ELDX bullet 212 Grain in my 30-378. I'm shooting out of a custom rifle with a 28 inch carbon fiber barrel and getting 3300 ft./s with perfect accuracy using each 50 BMG powder 214.1 grains. I have killed three Elk in with it all shot between 350 and 444 yards. Each were heart lung shots and only one of the three elk was not a complete pass through the bullet showed hi amount of fragmentation and complete jacket lead separation but because this rifle shoots a 1/3 to 1/4 minute of angle group, I took it to South Africa. There are shot multiple blue wildebeest, black, Willder beast, how to best, kudu, England, water, buck, In every case shots were 202, -430 yards all shots were chest and lung heart. All virtual, immediate complete kills, however, only one pass real on a black wildebeest, the bullets highly fragment and I have zero faith that they would penetrate a shoulder or humerus bone on any of these animals, and still reliably reach vital organs as the bullets were so fragmented I believe that I've been absolutely lucky on elk, and was certainly lucky in Africa, and realized very quickly, after attempting a shoulder shot on a three-quarter black wildebeest that anything other than a perfect heart and lung shot is unethical and ill-advised I do not consider an ELDX 212 grain bullet to be a reliable bullet in any shape way or form in that high velocity cartridge and will be switching to Barnes solids as I do not expect to remain as lucky as I've been and believe that a Barnes 208 grain L RX, bullet or a hammer bullet would be better. It's unfortunate as I spent much time loading the ELD ex bullets and tuning them.