How To Make Sinkers Ball Milling Black Powder. Will Lead Sinkers Banging Around Inside A Tin Can Spark?

Ball milling black powder. Will lead sinkers banging around inside a tin can spark? - how to make sinkers

I'm black powder, an ancient form of powder for a scientific project.
Does the earth with great accuracy, so I am a "ball mill.
I have a ton of lead sinkers round, because I know it's not leadership if strike sparks together.
I wonder whether a spark can be penalized if you can?
I am planning on using tin containers for my ball mill.