ES/SD vs Group size

[Dos XX]

Shoot two 10 shot groups at 500 yds or 1000 yds and see what they do.

 

[bmart2622]

Just a quick update. I loaded up 5 rounds seated .020 deeper and 5 .020 longer. The group seated .020 closer to the lands shot. 488" with an ES of 17 and an SD of 5. I think I will run with that