So you won't miss when shooting (Spell)

From The Black Books of Elverum, Mary S. Rustad edition:

So you won't miss when shooting

Take a human bone, crush it to a powder, and blend it in gunpowder. Use this blend of gunpowder in the gun. This is a mixture that has been well tested.

The grimoire The Black Books of Elverum lists this spell.

Timeline of related events

1700

1790

In this decade: Black Books of Elverum written (lists this spell)