http://www.alliantpowder.com/reload...;type=1&powderid=12&cartridge=51

here's their data for the 243....

you can use that or work up a little from there...

That is what I do for my 6mm Rem.


"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez