I spent a LOT of time at Federal back in the Blount Group days,
Federal used both mechanical & visual inspection.
Cameras, automated measuring, weighing,
And a line of visual inspectors (humans) to qualify the ammo.
Weight issues always got taken down in plant. A light powder charge or heavy weight bullet sneaking in got taken down,
While knicks, scratches, dinged Case mouths, etc went into the 'Seconds' bins.
Federal also loaded their generic box ammo with 'Seconds' bullets, some that came in with slightly shifted cores, +/- specified weight, ding on the nose from die punch/not enough lube, etc.
The 'Wrong Color' case is an example, a million cases rejected for first quality because the lube used during case forming darkened the cases slightly while in storage, these were loaded as 'Seconds' and put into generic boxes, no difference what so ever in function.
I WOULD keep in mind I'm shooting seconds,
I WOULD use reloading safety protocols, checking for squibs or barrel obstruction if I had a missed target or 'Miss-Fire', the same way you should be doing with handloaded ammo.
The reason is, seconds aren't treated with the same respect that first quality ammo is, they CAN get knocked around pretty good headed for those generic boxes... and you don't know for sure what culled them in the first place...
I shot a BUNCH of 'Second Quality' ammo from Federal, and had no issues what so ever other than the obvious case neck fold in pistol ammo once in a while.
They let us shoot up as much as we could stand, and other than the occasional scratch or knick on rifle ammo, or case neck fold on pistol ammo it all fired & cycled just fine.