One near certainty is that the chambers of your various rifles each differ from the others. If you are sizing all this brass in the same way, it can't be optimal for every rifle, or for the brass.

Another certainty is that your brass is from different manufacturers and/or lots. Therefore the likelihood that the same powder charge is optimal for each effective chamber size, for every round, is low.

Finally when sized in the same way, some brass will be worked more than others.

Precision shooters wouldn't use those practices because consistency is fundamental to them.

Whether any of these things will affect your brass life (slightly if at all) or your results is uncertain.