[Easy]

Originally Posted by MikeG

Let's not turn this into trolling or a flamewar. I believe Scarecrow is trying to decide whether he should sell this particular line of BBs.

Anyway, do we really care about the exact makeup of the BBBMAX? I think general safety is the issue - which will have to be proved out with physical tests.

Either way, the three ceramics you listed are nowhere near the same density of the BBBMAX (2.4 g/cc):

Aluminum oxynitride - 3.688 g/cm³ (http://en.wikipedia.org/wiki/Aluminium_oxynitride)
Magnesium aluminate spinel - 3.60 g/cc (http://www.matweb.com/search/DataShe...f3da602d4ad717)
Single crystal aluminum oxide - 3.98 g/cc (http://www.matweb.com/search/DataShe...e0155ee448d6f0)

Yes i have seen the their densities. That's what i could find. Is it possible to mix an ingredient that would reduce their densities during the manufacturing process?