02-16-2021, 07:07 PM
Sinclair Wrote:Years ago, in a Sierra reloading manual discussion on group size and accuracy, Sierra technicians suggested shooting groups of 7 or 8 rounds. They found that this practice gave statistical results equivalent to shooting 100 rnd groups. As far as how many groups, I do not remember, but IIRC they only shot one group per test. The more shots fired, the more extraneous factors become significant statistically. As we are all aware, it is very difficult to duplicate the exact conditions, whether environmental, physical, or mental over a long string of shots.
In fact shooting two or more groups of same loads, beeing all equal ,even a few minutes apart, always gives me pretty different results. I don't know other shhoters but for me is so, whaterver I pay attention to shoot at my best.