Does anyone know of any pressure curves for black powder that have been published?

[Texantothecore]

I was just wondering if anyone, perhaps Hodgdon, had published pressure curves for black powder. I don't remember seeing any.

[fouronesix]

The one I could put my fingers on easily is published in the Lyman Muzzleloaders' Handbook, 1st edition dated 1976. It's in the Pyrodex chapter by Pyrodex inventor Dan Pawlak. Multiple Oehler derived pressure traces are shown comparing Pyrodex to BP as fired in a T/C 50 cal.

[Chicken Thief]

This might help:

http://www.ctmuzzleloaders.com/ctml_experiments/bp_burning/bp_burning.html

[w30wcf]

Posted on the ASSRA forum a year or too ago....

http://i116.photobucket.com/albums/o25/w30wcf/pressurecomparisons.jpg

w30wcf

[Gunlaker]

There were a few pressure plots published in the Black Powder Cartridge News some time ago.

Chris.

[Texantothecore]

Thanks for the help guys. Very interesting charts.

[John Boy]

Texantothecore, a pressure curve is based on the the caliber, the powder charge and the bullet weight which translates to velocity. You might just want to determine the caliber you are interested in and look it up here ...
http://www.goexpowder.com/load-chart.html
Save the charts for future reference