Re: which caliber for all around use?
In fact I ignored the 1500-2000 yd mark for several reasons.
No need or justification at that range, even a WELL trained sniper is pushing it at that range with specialty equipment.
There are damn few places on this earth where such a shot can even BE made for that group of animals, antelope and caribou being the basic exceptions and if your familar with those animals normal territory, the wind is gonna make it near impossible, period.
I've hunted antelope in Wyoming, the wind is a PITA MOST of the time.
And even there the rolling terrain makes those ranges near unobtainable.
The longest range parameters are simply unrealistic, period.
You are what you do, when it counts.