Group size measurements

[jippy1]

1) When people measure and report group size, are they measuring edge to edge, or center to center?

2) Any idea what program this guy is using to make the squares and diagonal measurement lines?

Is it something he’s just doing as a screen mark up on his own, or is it an actual program that measures the groups

 

[theLBC]

What software / app for measuring group sizes?

That does this: Thanx.

www.snipershide.com

 

[Lunchbox27]

Grab a set of calipers. Measure the bullet diameter of the round you are shooting and zero the caliper on that. Now measure the group edge to edge and you’re done.