Start at 400 to make everyone feel good, then 600, 800, 1000, 1300, 1500, and a mile.
I would make the mile just for fun and giggles.
If shooting steel, just make all the targets approximately 1 MOA in size for the distance being shot.
Up to 2-shots per target, with the 1st shot impact counting 2 points and if they hit it on the second attempt one point.
Beyond 1K give three shots, with first round impact being 3 points, 2nd round hit 2 points, etc...

8 and on can get snarky real quick depending on the conditions and or target size and or varied field shooting positions.
Depending on target size and conditions, even 600 can be humbling.
Steel is easier in the sense, you can see to correct easier (depending on how you set it up), however a large paper target...

If someone pulls out a comp rig for a 2-mile comp, obviously they would have an epic advantage, if they know their drops and are decent at reading conditions

Ernie "The Un-Tactical"

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