Oklahoma law, last I checked (about a year ago), requires bullets to be at least 60% lead. I think that leaves room for a small penetrator, or expander, whatever you want to call it. IIRC, chilled iron and bronze have been used on cannon shells for that purpose.
Google Books has some 19th Century books on guns and armor, if you're interested.
And I did OTD&E work on the GAU-8 cannon for the A-10. The standard AP round for that was about 4.5lbs of depleted uranium, with teflon drive bands. 30mm diameter slugs. 4000FPS, IIRC. I used to have a dummy round, but lost it many years ago... Before I learned not to loan stuff I cared about. ;)
Bill in OKC
--- In gingery_machines@yahoogroups.com, Donald Qualls <silent1@...> wrote:
>
> Nick Andrews wrote:
> >
> > Then there's the one-offs and specialty things you can make. A guy at work
> > and I have talked about making pistol hollow points with steel penetrators
> > in them just for fun. There was at least one commercial bullet that had
> > this, but they were pulled off the market.
> >
>
> I'd be very cautious on legalities for something like that. Those could
> easily be considered "armor defeating" bullets, and as such carried a
> bunch of additional Federal (and quite probably even more state/local)
> restrictions compared to ordinary sporting ammunition. I'm serious
> here, you're talking potential multi-year sentences for being found in
> possession of one assembled round with such a bullet.
>
> --
> If, through hard work and perseverance, you finally get what you want,
> it's probably a sign you weren't dreaming big enough.
>
> Donald Qualls, aka The Silent Observer http://silent1.home.netcom.com
>
> Opinions expressed are my own -- take them for what they're worth
> and don't expect them to be perfect.
>
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