My favorite bullet I've ever tried for performance on game is the standard accubond. I've recovered a few from elk and muleys shot at real tough angles. They all weighed very close to 65% of their original weight and had excellent mushrooms. Most I've shot have passed through on broadside shots at deer and elk. The ones that didn't penetrated a bunch of critter and broke bone.
I shoot Bergers in my 264 win mag for whitetail and antelope now. They have performed exactly as advertised, tiny entrance explosion inside and seldom an exit. I haven't had an animal go far after being hit by one, most drop in their tracks or within 20ft. I went to the Berger for better long range accuracy. The Accubonds seemed to do well until 450-500yds and then my groups became less consistent. The Bergers will hold the same group size at 600yds as the accubonds did at 450 in that rifle. I like the way Accubonds perform on game better personally but the Bergers have not failed to kill everything I hit with them quickly so I have no reason to fault them. I was chosen as one of the people to test the Berger 87gr 6mm bullet before it came out and it shot and killed very well also. The only negative I saw on it to report to Berger was that past about 175yds it didn't open quite fast enough on coyotes to drop them quickly. It makes sense if the bullet is designed to penetrate 2-3" before dramatically expanding that's pretty deep into a broadside coyote. Deer gave it enough mass it expanded and killed them very well. I loaned the rifle out to a couple neighbor's wives for doe season during the test and even on a poor hit behind the lungs the doe died within seconds.
I just got a couple guns back from the gunsmith that have been in the works for a while, I bought the parts over several years a piece at a time and just got them completed. One is a heavy 264 for long range with a 25" #5 fluted Lilja barrel and Huskemaw 5-30 scope. It weighs about 12lbs with the scope, not a light mountain rifle by any means. I plan to try the Hornady ELD-X bullets in it first and hope I can get a good load with them. They may be the perfect combination of the Accubond and Berger if they perform as advertised. Maybe the problem I had with the standard accubond at longer distances was the tip melting Hornady talks about, makes as much sense as anything.