Thread: 3 vs 5 shot groups

I was looking over some of my old targets for load development (seating depth specifically) comparing 3 and 5 shot groups. And from what I could see I would have reached the same conclusions with 3 shot groups.

Has anyone found the same?
Has there been cases where 3 shots have lead you astray?
What were you testing; seating depth, charge, etc?

I would like to hear from people who have actually tested this. Not; I know someone..., the internet says..., statistics state...

Thanks