ORIGINAL: bronko22000

Who knows. And I don't know what they are doing to this new propellant to give these 'small' cases the same MV as the old reliables like the 338 Win Mag. and 300 Win Mag with similar pressures.
I think if they made this propellant available to the public you could probably get pertty close to these same ballistics out of your bolt action 308. Can you imagine something like a bolt action 358 win with this new powder. With - say - 25% increase in MV/Eng without any increase in pressure? That would be one heck of a round.