What is long range shooting and extreme long range shooting I believe has been established by the compettive sports.
Long range hunting on the other hunt I think it is subjective.
If I am hunting in FLAT west texas for antelope....it can be one range
If I am hunting in Colorado..it can be a different range..
Then again, if I am on one hill side, and the game is on the other...with very clear view of surroundings..could be a third...
How I decide, is not the ability to shoot at that range, but whether I can find the wounded annimal in case not everything goes right.
That is MY Subjective Opinion/Decision Process, applied to ME!
you decide yours!