Thanks John, and Tejano.
Actually, I kinda lost track of the fact that Graf's has the PPU 6mm in stock. It's a few bucks more than 7x57, though, and that is what got me started down the "what-can-I-neck-down" rabbithole. All things considered, I'd be best off buying 200 pieces of PPU 6mm and calling it good.
If Lapua offered 6.5x57 or 7x57 I'd stay down in that hole, but they don't so I won't. Lapua DOES offer 6.5x55, but I'd imagine that doesn't work out well or else everyone would be onto it.
