Thread: 3 shot groups are useless!

Originally Posted by gimp

This thread demonstrates the issue clearly.

https://www.nzhuntingandshooting.co....cision-103608/


Average group size across 7x 3-shot groups is .6", however the actual dispersion is 2.7".

You can lie to yourself with 3 shot groups but it's really hard to get the truth from them if you want to.

Exactly. The reason I'm a bit hot on this is that both rifle manufacturers of "factory rifles" and worst, sellers (usually the first owner) of custom rifles pass off rifles as "sub moa". I've bought a few of each. I've spent a heck of a lot of components developing both rifle/load combinations, and my shooting skills. So I'm a bit pissy when I go out and shoot groups such as I have been with the Bergara . . . . With a lot of effort I "might" get it to shoot real MOA. Another really high end and expensive 6.5-06 also springs to mind, since parted out so no one else got sucked in ( and amazingly, the barrel off this rifle fitted to another action later on was a true 0.5 MOA shooter).

The "common denominator" in all this - 3 shot groups with an individual small group, but much higher actual dispersions.