Granule powder has more surface area exposed, and burns faster. Low explosives (black powder, or substitute) are deflagrating explosives- meaning it burns, and the spread rate of the flame is slower than the speed of sound. To a degree, you will find similar differences between the grades of real black powder- fG vs fffG, etc. More fff's the finer the powder.
What we have here is... failure- to communicate.
Last edited by c3shooter; 04-13-2010 at 01:42 AM.