Tanner,
Notice that there wasn't much difference in group size between the first groups and the one where he let the barrel cool every three shots? I no longer believe its barrel heat that causes groups to open up, but rather that 3 shots is just not a big enough sample to be an accurate indicator of where the next shot is going to go. Same thing if you have a series of successive small groups that hit at slightly different POIs. They are just part of a larger group that is a more realistic indicator of what a rifle will do.
I do tend to not rattle off ten shots at once most times, but that's more to prolong the throat more than anything else.
John
If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then I will hear from heaven, and I will forgive their sin and will heal their land. 2 Chronicles 7:14
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