I start out with 5s when looking for promising data with the chrony. The promising ones get repeated with 10 shots to confirm. Then its seating depth checks with 5s @ 100 yards.
Final range checks are at either 200 or 300 yards.

I currently have 2 loads that are neck and neck for going into the recipe log, so next week it's 15 rounds each at 200 or 300 yards (depending on however busy the range is) to decide.

Then when the snow clears I'll be in the hills where I check 'em again at 400 yards. I can always get to within 400 yards at whatever I'm looking at in the crosshair.

It's you and the bullet, and all the rest is secondary.