LOL ok. Are you trying to get spanked again? Then continue.
Backpedal harder bro. Again, you're not casting a barrel for modern cartridges. Period. I won't get into the details of why unless you want me too, I mean if you ever took 8th grade shop you would know but maybe you forgot/wasn't available.
Casting bullets is a
non sequitur.
Bullets are not load/pressure parts of the firearm. The breach, throat and barrel are.
This is typical gubbermint Kabuki theater. This is a knee jerk over-reaction designed to create dialogue and pre-emptively plant the seed into people's mind that it would be acceptable for citizens to be further controlled. It will gain support from women and weak men, and might pass, but will get shot down in SCOTUS. The argument would be as you stated, what is the limit of what can be seen as a tool for firearm manufacture, and presuming that a citizen is going to use a common tool for "illegal" activities is a violation of their civil rights. When the true scope of that is presented, I doubt it will ever pass even in liberal NY. NYC maybe, but I seriously doubt not the entirety of the state. So what would be the effect of such a law if you can move out of NYC and then "legally" purchase tools and machinery? None so it's theater. Plus, you would also have to make personal modifications of ANY tool illegal. And that won't pass.