On a large proportion of YouTube rifle reviews the tester uses a three-shot group to demonstrate accuracy. Does anyone else think this is knackers? In Walter's book there was an interesting piece on calculating the true centre of a group and it needed 25 shots to give statistical significance.

While I think that 25 would be tedious to watch and also quite hard to do in a string for the shooter, I think that the minimum number of shots for assessing accuracy ought to be 10 or 12, even if two different aiming marks are used.

What d'yall think?