I've now got experience of these on red hinds if that's useful?
.270win, 145gr, 2950 out the barrel.
Shot 6 beasts last week with them ranging from 40KG (calves) to 100KG or so.
The shots were between 100 and 280yds. 4 H&L shots, 1 lower neck shot and 1 shoulders.
The bullets are definitely good killers, better than a standard cup and core in that respect I'd say. Everything fell quick as I could have asked, several on the spot, all within 50yds. Examination of the beasts during the gralloch showed substantial damage to a pretty wide area.
That said, they are definitely extremely frangible. All of them did exit and travelled in a straight line, even the one that took out both shoulders, but the exit wounds are impressive to say the least, and much more than my friend was seeing with his standard cup and core bullets. One shot which was slightly quartering showed some jacket frangments left in the beast as well.
I think they're very well suited for my application (lightly built cull animals for meat at mid- to long-ranges), but I'd worry about the damage to the cape if I wanted trophies.
I'd use the .270 ELD-X on any mid-sized soft-skinned game species, so red deer, fallow, various antelope etc. Anything less than 200kg or so anyway, no concerns. Anything with a heavier build or thicker muscle like boar though, and I'd worry about lack of penetration or deflection.
They do buck the wind very well though. I was holding off several inches less than my friend in equivalent conditions and honestly, I think this saved my arse a little on one of the longer shots which was already a little farther back than I'd intended (still lungs, still dead, but not exactly behind the shoulder if you catch my drift).