I find the older brass more consistent, regardless of brand.
Recent manufacturing has cut corners for cost. Very few brands hold up to their quality, European brass has not changed much over the years.
Remington brass of new manufacture is miles ahead of Federal, Hornady or Winchester. It's capacity is pretty uniform in the same lots, but if you segregate by headstamp lettering size, you get much better consistency. It's so good that I use it my Hunter class rifles. Was using Norma, but primer pockets open too soon for me.
With proper case prep and sorting, Remington brass has just the right hardness in the head and softness in the necks to give very good accuracy, but it has to be sorted for case capacity, not case weight.
Cheers.