Quote Originally Posted by zx10mike View Post
so when you do your load development you do 5 to 10 shots each powder charge and then 5 to ten shots each seat depth ? 3 shot groups are fine to scan for optimum powder charge and seat depth. then when you find those nodes fine tune with 5 shots.
If you're finding optimal weight and length with 3 shot groups what is there left to fine tune with a 5 shot group?