Originally Posted By: AWSTry them and see how they work, you might have to order a 308 expander ball for your sizer die.
I shoot a odd German caliber that the bore has been slugged at .260 and I size .264's down to that. A german reloading book that I have excerpts from suggests using .257 bullets.. I tied it.
It works .257 Hornady V-Max in the .260 bore.


Wow! That's pretty good. I wonder at what pressure JHP bullets obturate, I read somewhere that Barnes TSX (a gilding metal bullet) obturate at 45'000 psi. If a a nearly pure copper bullet can obturate at 45'000 psi surely a jacketed bullet must at or below that pressure.