"If these come out of the same plant to the same specification, this is sloppy replication of effort, given that the density is the only matching element."
The density tells you something VERY important...
That the base powder is the same composition.
You can, however, do amazing things to the burning characteristics of identical powders (without changing density) with the coatings that are tumbled on in the finishing steps.
Burn inhibitors, flash inhibitors, etc., can vary the burn rate of a powder pretty dramatically.
That's why I made the point about primary and secondary specifications.
Last edited by Mike Irwin; June 16, 2005 at 07:53 AM.