I had a bad and nearly catastrophic experience with A-MERC brass one time.
It is junk and severely bulged when it was fired - I'm lucky that it did not rupture, injuring me and/or wreck the pistol.
I ended up sorting through six 5-gallon buckets of brass to ensure that all the A-MERC was gone!
Also, I've got enough brass now that if I run across any crimped primers, I just toss it in the recycling bucket.
That is normally good brass, but I just don't want to spend the time de-crimping.
Are you talking 9mm or a rifle caliber.
I never sort pistol brass.
The only thing I do is pull steel stuff out because it's got a Berdan primer.
I don't even worry about aluminum Blazer. I've loaded it for years and never had an issue. I will pull it if I see it. But if it gets through, I don't worry.
With rifles, if I'm manufacturing .223 for AR blasting, I do a pretty decent inspection and resize and trim everything. But I don't sort for head stamp.
For precision rifle, including .223, I pull out Lake City, Federal, Winchester, Remington, Lapua, Starline.,
The Federal with the blue adhesive around the primer comes from Gold Medal Match. So I separate that from other Federal.
Everything else gets dumped into the bucket for "blasting" ammo.