Thanks to all replies ! Is there anything wrong with copying a factory seating depth ?
In question would be Nosler 165 gr. 308" for 3006 .
Thanks , maybe their powders are hotter .I wouldn't have any problem with copying the factory depth as long as the bullet weight was the same as the factory's. But that'd be just a starting point because I can't precisely match the factory powder type/charge, neck tension, and all the other factors that are important considerations.