Powder Burning Rates and Powder Size

[Deleted]

What's the fastest burning extruded powder? I've looked at various webiste that had charts for powder burn rates. But none of them mentioned what type of powder it was. (Ball, extruded...) Is there a website that would have all of this info? Thanks.

[cfvickers]

Are you talking about extruded flake or stick type powders. Flake powders get about as fast as they get. I think IMR PB is a stick type and about as fast as those get. Many of your very fast burning powders that may be used in shotguns and the such are flake powders which IMR and Hodgdon call extruded.