Originally Posted by MontanaMan
Originally Posted by Mule Deer
Here's another example of a problem with "reading groups," in particular 3-shot groups.

These groups were fired on the same day from a custom 7x57. It was a relatively calm day, but I still used wind-flags--and let the barrel cool down between groups.


[Linked Image]


Natural variance due to shooter...............LOL wink

MM

Here's another photo, of 100-yard groups shot working up loads with my 6mm PPC benchrest rifle--which with scope weighs right at the 13-pound limit for "heavy" bench rifles. If I recall correctly, these were 4-shot groups, which I prefer to 3-shot when working up loads for anything other than big game rifles. Please note that they still have different POIs:

[Linked Image]

“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck