I'm sure you misundertood what your "resident BR official" said. I'm certain he said/meant .109 "Average to Center" which is not the group size. The group size is center-to-center of the two furthest shots (Max Spread C-to-C). I just measured it again and I got.tarbabi wrote:Okay, I had our resident BR official measure it today. .109
I am still amazed. I wish I had shot a five shot group now.
Matt
Max Spread Center-to-Center (CTC) .204 (this is the group size)
Average to Center (ATC) .101 (this is not the group size)
The ATC is the center of all shots in the group, below is an example. The "group size" is about 1" but the "average to center" is half the distance between the two marked shots.
A couple more pictures to illustrate...
And back to .5 ATC...
I figured since words alone did not get the point across some graphics might.
WW