If a misfire is detected, should you unload and reload the hole before reshooting?

• A. Yes
• B. No
• C. Only with supervisor's approval
• D. It depends on the situation

Answer: (B)

When a misfire is detected, handling the hole safely is the priority. A misfired hole may still contain a live charge or a partially detonated explosive. Unloading and reloading the charge can trigger a secondary detonation or unpredictable energy release, putting you and others at serious risk. The proper response is to stop blasting in the area, secure and isolate the hole, and follow established misfire procedures with the blasting supervisor's guidance. The misfire should be investigated and cleared before any reshoot is attempted, which may involve waiting, removing or reworking the charge as directed. So unloading and reloading before reshooting is not done.