I would test fire randomly any ammo that is purchased recently or in the future.
Just have a bad feeling about all of this and one way to screw us would be to buy up all the “good” ammo and somehow mess up the new ammo. So when the SHTF, we are all having problems with jamming weapons etc.
However if SHTF there will be a lot of government caliber bullets to be had, probably more than you can carry as the day goes on.
I have been shooting the ammo, some of it anyway...can’t see any difference as yet.
However, I did get a box of Winchester 22 LR 36 grain/1280fps in 333 round box where the casings look very very dirty like they skipped a step. Could be the lead rubbing off from the loose packed 333 rds, but still very dirty.... I think QC was off on that lot of production.