This is a 100 yd group shot by Luke with some of his practice ammo. But this provides a good platform to show how to measure a group.
If you can't see it good click to enlarge. The red circles are .308" and the lines measure center to center. You take the furthest two in the spread and that is your group. In this case would be a 0.92" group. This was loaded in to CAD and scaled by the inch squares, so it is on the money. It is not to scale in the image, but in the CAD Program.
Luke, a little over a 1/2" group - 0.58"
Outlaw, this is my practice ammo. Portuguese surplus. What is the size on that? http://i152.photobucket.com/albums/s180/lto1245/ATF/DSCF1141_zps045238c5.jpg
ReplyDeleteLuke a little over a half inch. That's a damn good group.
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