LIAR!
The bullets will still be anonymous, whether the shell casing is microstamped or not. This won't work, so then they'll want to put a serial number on every bullet. ** No more cheap ammo. **
these unworkable schemes only serve to make people feel good while skewing the markelt. revovlers and non-ejecting case design will (re)emerge. the current population of non-stamped weapons and bullets, if not outlawed, will become fixed and artificially expensive. simple economics. we saw something similar with the AW and normal capacity mag ban of 1994.