From another thread: "Would you support legislation to require microstamping on all semiautomatic pistols with identifying marks which copy the information to discharged ammunition?"
I was just thinking about how this would go, were it to be passed. Obviously, it would spread from autopistols to other gun types, but it would lead to even more legislation to support it. For starters, merely registering receivers would no longer be sufficient; they would have to register bolts (slides in the case of autopistols) to identify the breech marking to its owner. Think what that would do to AR fans.
Eventually, it could even lead to attempts to ban revolvers, on the basis that they don't leave spent brass lying around for the required ID.
Could also lead to a ban on steel-cased ammo, on the grounds that it could wear away the identifying mark.
Anything else?
Obviously I don't support this, which is why I want everyone to consider its hidden implications.