Hello,
here would be an address of a german hunter (physicist) who specialized on calculating high-spped precision bullets. He has an own manufacturer who makes the sophisticated copper bullets in small and large series.
you might find him very interested.
His e-mail address:
l.moeller@snafu.de He also has huge internet pages, partially in english languag.
Please mention my name when contacting him
Best regards,
Torsten