Quote Originally Posted by charlie b View Post
So the top target were all the same except seating depth? And no scope change? So you should overlay each pair of groups to give you 6 round groups. Will give you a better idea of which seat depth is better.

When it boils down to the final 'settings' I shoot a minimum of a 5 round group. The only time I shoot less than 5 rounds is the initial velocity ladder (which is 3rnd each). There are enough data points that I can identify a trend (most of the time).

I only mention because I have had to redo a series. The 3 round groups looked wonderful. But, a 5 round series showed a different preference.
I'll start shooting five round groups now that I'm close. I just didn't want to waste the powder, primers and bullets on loads that weren't close.