Re: Turning my own Solid Brass bore riders For the 338 Lapua
Unless you are approaching this from a purely recreational perspective, the investment is significant.
If you examine the nose, and tail, of a Barnes solid, you will see that they are not point turned (and are realtively crude). The precise cutting is on the body only. This forming method could be adapted economically to a home/hobbiest environment.
Swiss lathes are great. They only make sense for mass production of a single part profile however, and the cams alone will cost ~$800 per set-up. CNC is versatile, but definitely not a "hobby" level investment.
Yes, I do cut bullets. There are controlled expansion test results, of a hunt version, which you will see shortly in a report at this site. Photos of some of the earlier prototypes are in multiple threads at Sniper's Hide. They are an engraving-band configuration, which is quite different than the bore-rider concept.