Are we talking about rifle or pistol brass?
For me, if its rifle brass I wouldn't touch it. Unknown condition, unknown batch.
It may be at the end of its life or from a different batch to others in the same brand affecting case weight and therefor volume.
Secondly I use lapua brass, even if I pay $100/100 that's $1 per case and I expect at least 20-30 firings per case. That equals just 3-5c per firing for cases. And I rarely loose my own brass.
If its 9mm pistol brass I am happy to pick it up if its shiny and throw it into my tumbler

Chronos