I'm developing a 6.5 Creedmoor load with a new bullet and I am working on the seating depth. I was wondering if the seating depth repeats itself so to speak as far as gets small than grows in group then gets small again, kinda like varying powder does. I usually use for powder varying 0.3 grains and I feel I don't miss where the small group happens. What is a good increment for seating depth so I don't miss it, but don't wear out my barrel and waste a bunch of ammo either?
Lastly, I hear someone can optimize powder based on ES/SD rather than group size, then work seating depth to make the group small, as if they are almost independent of each other. Anyone have any comment to this philosophy? Thanks for any wisdom that can be given
Don
Lastly, I hear someone can optimize powder based on ES/SD rather than group size, then work seating depth to make the group small, as if they are almost independent of each other. Anyone have any comment to this philosophy? Thanks for any wisdom that can be given

Don