Thread: 3 vs 5 shot groups

Originally Posted by Ross Nolan

I find the best use of a 3 shot group is to identify loads during development that aren't any good.

Tight 3 shot groups may ( probably will) expand when turned into statistically useful 10 shot groups, but a big 3 shot group is never going to shrink by putting more into the target.

This. No point wasting ammo on something that a three shot group can tell you is a lost cause. Then when something looks good either do multiple three shot groups to get more data or do bigger groups in one hit to confirm.