I have lots of experience with the eldX. Its a great high BC cup&core! The weight retention is totally dependent on the impact velocity. I mainly shoot the 162eldX in the 280. I find it is a very soft, quick expanding bullet and ideal for longrange deer and pigs here in Texas. It will be good for Longrange elk too(slower impact velocity). My only concern is an up close hard-angle shot at high impact velocity, it will expand rapidly with a MV above 3Kfps. That makes it extremely deadly with a behind the shoulder rib shot but may be lacking penetration if a hard quartering is necessary.
In my experience with Elk and lots of ballistics testing on wet phone books and milk jugs. I recommend the Nosler Accubond in the heaviest offering available in your caliber of choice. The 160AB would be a great choice in the 280
Happy Hunting
James
