Best distance to do load development for LR rifle ?

[hound53]

For me, its the purpose of the rifle. If target shooting is the main purpose, I want to do load development at 200 meters. Most variables won't have a significant effect, wind for example on bullets, and can truly test a load IMO.

For hunting rifles where my shots will always be inside 100 meters, than load development at 100m is fine.

I am tending to agree psharon.