Log observations without overfitting the profile

Preserve impacts, conditions, and confidence so repeatable evidence can improve a profile without chasing isolated shots.

Record date, range, rifle, ammunition lot, target distance, profile revision, atmosphere, wind estimate, and predicted correction.
Describe the observed correction and how it was determined: group center, repeated impacts, qualified spotter call, trace, or another source.
Separate mechanical, shooter, range, and weather uncertainty from a likely model difference.
Assign confidence honestly and retain rejected observations with a reason instead of quietly deleting inconvenient evidence.
Change one profile assumption at a time, then validate the full useful curve.