Funny about ELR range. There's been quite a few youtube discussions about what constitutes ELR distance and concensus seems to be, it depends. I been thinking about this myself too and getting a generic distance is hard. For things like rimfire, ELR could be 300 yards, but not for any center fire.

So I was thinking some definitions like these:

ELR starts when a bullet has flown in subsonic for X seconds, x might be 1, 2 or 3.

Another might be the distance where a particular bullet will have move by X MOA in a 10mph wind. Again, here X might be 5, or 10, or 15 etc.

If we apply the first standard, with X=2, then 22lr ELR starts around 500 yards give or take depending on the bullet and muzzle velocity. Applying that to most 223, that's possibly 1000? What do folks think of this definition and what would be good X? What would be typical distance for popular cartridges with this definition?

What would be distances of various cartridge using the second definition?