Me thinks there may be some speculatin' goin' on! As far as I know, they aren't available yet. I hope I'm wrong!
The good thing is that with all of these 56-50 Spencers floating around (See the Spencer Shooter's Society), there are suitable bullets available for the 50-95! I have molds by Dakota Widowmaker, Lyman and Rapine that would all work. Now brass? That's another story....