Final answer:
To fix a failure to fire in a revolver, you can check the firing pin, inspect the cylinder, clean the revolver, and verify the ammunition.
Step-by-step explanation:
- Step 1: Check if the firing pin is damaged or broken.
- Step 2: Inspect the cylinder for debris or obstruction.
- Step 3: Clean the revolver thoroughly to remove any dirt or residue that may be causing the failure to fire.
- Step 4: Verify if the ammunition is faulty by trying different rounds.
- Step 5: If the problem persists after following the previous steps, it may be necessary to consult a professional gunsmith for further assistance.