Will, Achtung: Davis-Powley Pressure Calculations
http://www.aeroballisticsonline.com/ballistics/imrpowder.htmlAbove is a link that reworks the William C. Davis article.
This is really good for getting pressure approximations for the .375 H&H and .404 Jeffery.
I just wanted to post it again for Will, as my run down on an example was just a partial copy of some notes used to do a .404 Jeffery Varget load, and I redefined the "W" too many times there.
RIP,
Thank you sir. I take back all the nasty things I've ever said about you. On second thought, I ain't gonna.

Thanks for the info.
Oh Great Son of an Elephant Poacher,
You are welcome.