I inherited a bunch of 45 LC loads from my dad when he passed away back in December and my brother had some issues with some of them. We think they were double charged and the first round he fired destroyed a nice reproduction revolver. I figured I better pull the bullets and reload them to be sure the ones I have arent double charged. I pulled a couple rounds from each box and 2 of the boxes had some form of what I can only think is a black powder substitute. I just cant figure out what it is exactly. It is the color of light sand and has a consistency somewhere just courser than flour. It was compressed so I had to break it up with a piece of wire to get it out of the cartridge. At first, I thought it may be some kind of filler, but that is all that was inside and when lit, it flashes off like black powder and produces a ton of smoke. Any idea on what it could possibly be?
The third box I have from him is loaded with 8.6 gr of flake smokeless powder. I know the box my brother had was labeled as 10.5 gr of unique so it is possible that may be what I have as well. I plan on just dumping it and reloading them with new powder anyway, but I was just curious on what kind of powder the white stuff could be.
I'm attaching pics for reference.
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