I'm probably way ahead just keeping my big trap shut, but were someone to ask (which no one has) I might tend to approach this whole thing a bit differently.
That is, yes, the CNC lathe can do everything and better than any other machine in the world (just sayin'), and yes, this is a home CNC forum, but i look at your product line and notice you're selling ammo. Projectiles. That means once 50 items have dropped, you've sold ONE box of ammo (or 2 the way they package it nowadays). You're wanting to build a jillion of the same thing: a fairly simple projectile. And you want to do a lot of them for a long time.
Why not save several thou and just get an old Brown and Sharpe Screw Machine? Grind a tool bit (or two) to match your desired ogive; set it up and let it run. Copper is forgiving and most tools will last nearly forever. This technique has been working for decades -- even before NC existed.
Sure, it rattles a lot, but they're hard to beat when turning out your kind of production.
Change out a 20 foot stick of Cu whenever one gets done or even find one with a stick handler and load up a dozen sticks; turn off the lights; and come back... on the weekend!
Haven't been looking, but saw two of them on Craigslist about a year ago... for less than the price of a good software package.
Wrat