Just got word I will have two boxes of 285gr bullets shipped to me after a long wait. Will post results of how they perform in my 338 Lapua.
I am sure you are aware that the 285g bullets are not the ELD X bullets. They are "ELD M" which is their match bullets. Completely different design.
Good BC's but not recommended for hunting. However, the ballistician from Hornady told me they are no different than some of the other top open tip bullets out there. With the exception of their new heat shield ballistic tip and they not not tested them for terminal performance.
I've been following this post and others on the ELD-X.
FWIW, I'm seeing more and more of the .30 cal ELD-X in varieties of weights in our local Sportsman's Warehouse and Bass Pro here Las Vegas. I'm really tempted to buy a box or so. There are other calibers as well but I don't keep up with those.