To cause Rifles or Muskets to miss Fire (Spell)

From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:

To cause Rifles or Muskets to miss Fire.

Speak these words: AFA AFCA NOSTRA, when you are able to look into the barrel of some person's gun and it will fail to discharge; but if you desire it to give fire recall these words backward.

The grimoire Egyptian Secrets of Albertus Magnus lists this spell.

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