If you put up a 3' square paper target and you aim for the exact dead center, and you fire five rounds, you can then go look at the target and see where you hit. If they all hit in the same area. If they hit in the center.
But if you put up a 3' square steel target and aim for the exact dead center and fire five rounds, you get ping ping ping ping ping. You have no idea where they hit. You have no idea whether they hit in the same area or whether they're scattered all over the piece of steel.
If you prefer steel to paper, that's wonderful. But don't say it's better.