Hi,
That would depend on what "type" of ELR you intend to shoot?
It seems some people get caught up in "ELR" as a 1 way road in regards to what you must use, what you must do, how you must do it, how you must use it, etc etc...but it is as multiple direction road as any other "distance" of shooting; in which it has multiple shooting genres within the scope of a distance designation.
What works for Practical/Tactical genre will not always be best suited for Benchrest genre...
What works for Benchrest genre will not always be best suited for the Long Range Hunting genre...
Etc Etc
Sincerely,
Theis