Some random thoughts on shooting groups:
If one can not call his shots and know he shot a flyer before looking through the spotter, he is wasting his time at the bench.
One of the most revealing tests you can do with any hunting rifle and load is to staple up a target and shoot one shot from the bench each morning for ten days in a row.
A couple of five shot groups will show that the barrel does not walk as she warms up.
I usually shoot three shot groups during load development because:
Three shots into three inches at 100 yds tells me all I need to know about the load.
Three shots into .5 inchs warrants the expenditure of a couple more bullets to produce a more statistically relevant sample.
