Thread: Testing a conventional approach to load development

Originally Posted by No.3

As far as does shooter fatigue contribute to larger groups - yes. It's been proven several times over and there are several sources of fatigue that do it - eye fatigue from not blinking enough or focusing too long or optics that aren't set quite right for your eye, muscle fatigue, cumulative effects of recoil and blast, excitement and/or pressure on weird bits of the body from lying over something awkwardly all play a part as does nutrition and hydration. I can't shoot for nothing when I need to take a piss for one!

Can you provide some sources that quantify this or that provide evidence that shooter fatigue is a significant issue for shooting 5rd groups?