BP on Sawdust for Burst ?

[yvariro]

Hi all

I'm using right now BP on vermiculite for burst but i test some

Black powder coated Sawdust and i thinks the reesut is better but the sawdust is flamable and can ignite some bush-fire..

 

Someone have test BP on sawdust as burts? it work good as BP on rice hulls ?

Edited August 6, 2012 by yvariro

[xBangergoosEx]

Trying to coat sawdust in black powder will be a pain in the ass. Why not just granulate your BP? it will work the same (if not better) and it is a lot easier.

 

And if you are worried about sawdust being flammable and starting bush-fires, remember that Black Powder is also flammable and will start a "bush-fire" faster than sawdust will. Unless you mean the firedust that will fall after the shell bursts in the air, but im afraid that falling debris is inevitable. There is ALWAYS a danger of ground fires when you shoot shells.

[Seymour]

I think he means the issue of fallout... which while I agree is inevitable, I also see the sense in minimizing it.

 

Whether or not you get flaming fallout or not depends a lot on the particular sawdust. As will the success of it as a burst material. If it's too thin and like shavings, it compresses too much and forms 'fireblocks' that prevent the fire reaching all the stars before it bursts in larger shells.

 

On the other hand if your sawdust is more made of chunky bits, it will work better, but unless you have easy access to this type of sawdust, I suggest using a different material (puffed rice breakfast cereal, various plant pieces)..), or just making rough powder by granulating the BP with a coarse screen or kitchen grater. For small shells (and some large), especially boosting, this is an excellent burst.

Edited August 7, 2012 by Seymour

[WonderBoy]

I'm not sure if it would work for your particular application, but another material that can be coated is corn cob animal bedding.

 

 

I don't usually use this, but I have coated it 1:1 with BP and used it for filler and burst in cylinder shells.

 

 

WB

[a_bab]

Any kind of saw dust will come back as glowing embers, unless treated before with some fire retardant and dried before coating with BP (sodium silicate comes to mind).

 

Stick to vermiculite if that works for you; corncob works aswell but I find it to heavy.

 

I personally use puffed rice, as the puffed grain contracts leaving a BP "husk" that is both very flamable and quite strong.

Edited August 7, 2012 by a_bab

[dagabu]

I am sold on rice hulls but they can very well take away the beauty of a burst with glowing embers. I personally can't stand vermiculite but use what works for you. I am making pulverone now more then ever for zero light centers of breaks.

-dag