[Metal god]

I did a test a long time ago now that showed how you hold the firearm significantly impacts SD/ES . The short version is interacting with the rifle the least amount possible results in the lowest standard deviation and extreme spread . Meaning the tighter you hold the rifle and harder you pull it into your shoulder. The worst those numbers will be. I posted those results here on the forum in real time like eight or 10 years ago. I was at the range and posting the numbers as I shot. I don’t know if I can find the thread after 7000 posts but I’ll give it a try

Edit : I can’t find it. It must be buried in somebody else’s thread or I’m not sure what I titled it , Who knows why

Point being is You wanna test those numbers in the conditions the rifle will be used . If it’s a benchrest rifle, you should be testing it from your rest. If it’s a hunting rifle, you should be holding it in your hands pulled tight into your shoulder. This will give you your true standard deviation and extreme spreads in the conditions you intend to use the firearm.

All that said I’ve only cared about my standard deviation and extreme spread in rifles with muzzle velocity from 2600 to 3000 ft./s . In those cases I like low teens. It’s pretty hard to get into the single digits in my opinion but I have done it .